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  #16  
Old 04-24-2017, 04:09 PM
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Default Re: Breathn Strings UPDATE:

So?...after the weekend?...I guess Sid Sr. got back to his PC where after reading some of my rambling diatribe he sent me an email...a nice one...expressing concern and passing on some "General Information" too me where he wanted to inform me that while a 7" BH is just fine and within the accepted range?....that I may be better served by lowering my BH towards the mean of 6 3/4"s letting me know he gets his best results at 6 5/8th" BH.

He also advised that lowering the BH makes life much easier on the limbs explaining how it moves the position of closing shock down towards the limb bases by changing the bend moment via a lower BH.

Sid then went on to say that while use of an endless loop string is just fine?....he advises that the string should have no less than 20 twists.

Where armed with that knowledge?...I came home from work this evening and couldn't wait to count how many twists were left in my string (after taking just 5 twists out) where I counted 28 twists not including what may be hidden under the loop end and center servings where I felt comfy taking out 10 more twists and in the process?...finally removing the string tags John had pre-installed in this string to identify "The Strings True Center" (strand separation wise) and installing a pair of "Sims String Leech Silencers" and here's where things became interesting and?...where I got a chuckle thinking...

"I just installed a set of SHOCK ABSORBERS In My String!"

where I could literally "feel the difference" in my first shots via the perfectly separated strands at the strings true center compressing against the soft rubber body of the string leech silencers like so...



and even with these silencers installed in the string?...those 10 twists less dropped my BH down to 6 3/4" and the bow was quieter and the limbs closed softer than I ever felt before and for bonus points?....

I guess the added mass of the silencers too the string countered the extra 1/4" of DFC gained (by lowering BH) leaving my rig STILL in an impeccable state of tune...



and after settling in?...I recounted the string twists where it seems 3 more twists appeared...maybe from out under the servings?...for a total twist count of 21 "visible" twists.

Thought I'd share that with you folks and L8R, Bill.
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  #17  
Old 04-26-2017, 05:30 PM
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Default Re: Breathn Strings

So I finally managed to switch gears from the CH too the Tempest where I managed to get the new Breathn string strung up on it as well where there was a lot going on in my head because...well?...I've been loving the smoothness of the CH so much with it's Medium Hex7.5 limbs?...it made the Hex7 shorts on my Tempest feel well?...not quite as smooth....hence I was shooting the CH more and the Tempest less to the point that I actually contacted Sid Sr. asking for current pricing and lead time on a set of Hex7.5 ILF Mediums for the Tempest where he responded by going over some "Set-Up Tips" where he cited that many like me go after performance by running the limb bolts in and the BH high where he brought to my attention that while some marginal speed gains can be had doing so?...that it often comes at a large cost to "Feel" and that the reason the speed gains are marginal at best?...is because the actual power stroke has been decreased and that as little as 1/4" of BH can mean the gain or loss of up to 1" of string wrap in the limb grooves and?....that because of the Hex7 series limbs being very front end stacked?...there is very little cost to "Static String Tension" by running both a longer string with a lower BH so?...

I ran my limb bolts out to the max which on this riser with these Hex7 short limbs?...was 5 turns out on the bottom limb bolt and 4 1/2 turns out on the upper limb bolt which resulted in a 6 3/4" BH and even tiller at 5 1/4"s both top and bottom and here's what that looks like...






and because I had to take 10 twists out of the string?...Breathn is making me not one but two more longer strings for this rig...one of FF+ and one of 8190...to shop, compare and review which I'll try to do my best at with string weight, velocities and such.

Meanwhile?...this rig is shooting fantastic the way it is pictured above and I'm no longer entertaining the idea of upgrading limbs as I'm very content after the latest tuning adjustments and huge thanks go out to both Breathn and The Sids!
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  #18  
Old 04-26-2017, 05:49 PM
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Default Re: Breathn Strings

Interesting read Bill, even if only because I'd never run that setup in either configuration as I find I'm spoiled by medium and long limbs on whatever risers I'm shooting. Shooting 68-70" bows has spoiled me, I'd just never choose shorts but I understand the deep hooks require you stay in the meat if you want to get the gains and feel they are designed to give. I'd always set up a 25" riser with mediums or even longs for under chin anchor and any riser shorter is getting longs for sure.
Always interesting to see how other setups work for other people though.
Thanks and definitely let us know what you find when you shoot the new strings.


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  #19  
Old 04-27-2017, 05:20 AM
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Default Re: Breathn Strings

Quote:
Originally Posted by Steve View Post
8190 or 8190F?
I don't know Steve...maybe Breathn will see this and chime in here as I wasn't even aware there are two type's of 8190 however?...I will say this....and this is JMHO!....but my thoughts (and actual "feeling")....is this....

Those string leeches installed the way I described and depicted above?....add a good amount of elasticity to the string and seem to absorb a good amount of closing shock.

But again?...that's JMHO...FWIW....and?....YMMV
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  #20  
Old 04-27-2017, 05:42 AM
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Default Re: Breathn Strings

Jinks Im curious to see how long those leeches last. I havent had much luck, they seem to get cut in half.
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Thanks Joel, you made archery fun again.

Lifes too short to shoot conventional limbs, thanks Sid.
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  #21  
Old 04-27-2017, 07:28 AM
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Default Re: Breathn Strings

Quote:
Originally Posted by Steve View Post
Only ask because I know there is a difference - 8190 is a blend. I don't know what the elasticity difference is - haven't work with the 8190 - only the F. Just curious.
Yeah...and it gets confusing for me as well because from what I researched?....8190 is "A Blend" where the other component is "Vectran"....which is an LCP (Liquid Crystal Polymer) where my understanding is that is the very stuff we're supposed to avoid and is a major component in BCY-X and Fury.

But like I said?....Im confused there and?....very uneducated.


Quote:
Originally Posted by kenn1320 View Post
Jinks Im curious to see how long those leeches last. I havent had much luck, they seem to get cut in half.
And I can understand kenn in that...

When I received test samples of BCY-X, Fury and Majesty777?....

I was shocked at how thin and abrasive the X and Fury strands were as compared to stuff like D97 and 8180 where it felt like the strands had such a high content of LCP it seemed like real thin sanding string...very thin and abrasive....which I can envision cutting it's way through rubber string leeches in short order.
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  #22  
Old 04-27-2017, 09:49 AM
Breathn Breathn is offline
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Default Re: Breathn Strings

8190 is what he is getting ,F doesn't have the elasticity border likes.
Since mercury was released I did away with 8190f
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  #23  
Old 04-27-2017, 02:38 PM
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Default Re: Breathn Strings

Hi Breathn,

that's quite interresting. I have thought it's basically the same in terms of elasticity, since both are advertised as 100% Dyneema SK90 and the 8190 F being the one without additional Gore. Would be really great, if you could share some data related to this.

@ Jinkster: Really looking forward to your test comparing both strings.
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  #24  
Old 04-27-2017, 06:47 PM
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Default Re: Breathn Strings

As far as data goes there isn't much I know of,I was just going off what border has gathered in researching this.
Things will change soon though as dsm isn't making sk90 anymore ,everything is transition to sk99 so will have to see what's next ..
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  #25  
Old 04-27-2017, 07:09 PM
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Default Re: Breathn Strings

Quote:
Originally Posted by Breathn View Post
As far as data goes there isn't much I know of,I was just going off what border has gathered in researching this.
Things will change soon though as dsm isn't making sk90 anymore ,everything is transition to sk99 so will have to see what's next ..
An important point that was brought up a while back as I was speaking with someone affiliated with the string making industry is this....

It's an extreme rarity that any newly developed string material will be formulated or woven with much regard (if any at all) given to it's use on single string bows.

Of the tonnage of string material that's sold on an annual basis?...only a very small percentage will find it's way to recurves and longbows as the vast majority of it will ultimately be wrapped around wheels.

Us?...we cautiously make due with what crumbs fall from that table.
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  #26  
Old 04-28-2017, 11:29 AM
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Default Re: Breathn Strings

How does one order strings from john, I have some borders that need strings
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  #27  
Old 05-03-2017, 04:04 PM
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Default Re: Breathn Strings

John...the strings arrived today man and Thanks So Much!



I'm flirting around with a JD Berry ASL at the moment but I'll have a full report by the end of this weekend!

Thanks again!
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  #28  
Old 05-03-2017, 06:10 PM
Breathn Breathn is offline
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Default Re: Breathn Strings

Having to many toys is a good problem Jinks
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