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  #1  
Old 12-27-2012, 04:06 AM
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Default Question to DAS experts: Brace Height?

Do not want to highjack another thread so I open mine.

Doing some searches found these ranges:

Brace Height:
58" 7.25 to 7.50"
58 18,4cm to 19,0cm.

60" 7.25 to 7.75
60" 18,4cm to 19,7cm.

62" 7.5 to 8.25"
62" 19,0cm to 21,0cm.

Are those BHs right gor recurve limbs?

Thanks
Martin
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  #2  
Old 12-27-2012, 05:40 AM
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Default Re: Question to DAS experts: Brace Height?

Since I'm guessing you are refering to my thread on DAS preload and such, I'll chime in. Here is a link to the current DAS manual.

http://www.3riversarchery.com/pdf/dalaaownersmanual.pdf
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  #3  
Old 12-27-2012, 05:56 AM
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Default Re: Question to DAS experts: Brace Height?

Hi Jim,
Yes was your thread the one I do not want to highjack.
The problem is that they always give a range and they do not explain which limbs are for (S, M or L).

Actual Manual recommends 7 to 8 but 2010 and 2006 Manual recommends 7 to 7 .

I have the old David Soza Manual somewhere but cannot find it now.

Just would like to establish recommended BH from the experts in one post so all users can find it.
I have also ask 3rivers yesterday and I do not get an answer yet
Thanks
Martin
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Old 12-27-2012, 06:15 AM
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Default Re: Question to DAS experts: Brace Height?

I am no expert, but everyone is a bit different. You need to play and experimentnto find what you like and what you think works.

I have a 27 inch draw. Got a das gen l with medium limbs, a das gen ll with long limbs and a das brownie with long longbow limbs. I personally like a high brace height. On the two recurves brace height is 8 in. Longbow it is 8 1/4.

Again that is what I like.,doesn't mean you will
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Old 12-27-2012, 06:16 AM
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Default Re: Question to DAS experts: Brace Height?

Those are suggested starting points.
Arrow weight , limb weight, draw length and anchor all determine proper BH.

START low and shoot a few shots. Increase BH slightly and repeat. There will be a point that the bow is the most quiet. That is the BH you need to use. Doing this along with shooting through a chrono and you will see the speed increase and stater to fall off.
My recurve limbs ended up at 7 5/8" while my LB limbs are 7 3/4"
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Old 12-27-2012, 07:56 AM
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Default Re: Question to DAS experts: Brace Height?

Called the wife. She measured the string for me with no twists in it and a fair amount of tension on the string. The string measures 54". It is a 58" recurve. With just a few twists in it, the lowest I can go on BH is about 7 5/8". I always thought with a recurve you used a string 4" shorter than AMO bow length. So to get a BH range of 7.25 to 7.75 I will need a shorter string, who knows how much shorter but a shorter one non the less.
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Old 12-27-2012, 08:17 AM
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Default Re: Question to DAS experts: Brace Height?

60" bow with standard limbs 7 3/8" and 62" bow with Border Hex 6 6 5/8".
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Old 12-27-2012, 08:21 AM
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Default Re: Question to DAS experts: Brace Height?

Here is a direct excerpt for the DAS Manual written by David Soza.

This is the recommendation for the 60 inch bow.

Brace height

The optimum brace height for these bows is 7 to 7 3/4 . Brace height is best measured to the center of the plunger hole (or the crest of the shelf rest ramp). New strings may stretch initially and require adjustment by twisting the string. Always twist the string in the same direction as the original twists.


Hope this will help.

The 58 inch bow is a little shorter, 6 3/4 to 7 1/2 and the 62 inch is 7 1/2 to 8 1/2.
Again this is a starting point, your actual brace height may vary.

Erich
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  #9  
Old 12-27-2012, 08:44 AM
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Default Re: Question to DAS experts: Brace Height?

Called 3Rivers and spoke to Art. Asked him why they changed the BH spec. Told him which bow I had (17" Dalaa, short limbs, etc). He told me that 3Rivers determined that the BH was too low as originally spec'ed and found that with a higher BH the bows actually performed better. Said I would have to go to a 55" actual length string to bring the BH down to the original specs. Said it would not hurt anything to do so. Just thought I'd pass it along.
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  #10  
Old 12-27-2012, 08:48 AM
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Default Re: Question to DAS experts: Brace Height?

Another way I start Brace Height adjustments is to string a bow and check where the string touches the grooves on the limb top.
I like to see about 1/4 of the groove showing and then check brace height.
This gives a good starting point if you are not sure of the actual measurement.

Erich
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  #11  
Old 12-27-2012, 09:00 AM
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Default Re: Question to DAS experts: Brace Height?

Hi,
Just received the answer fron 3Rivers.

Art from 3Rivers Archery said:
"The recommended brace height for the 17" riser and any of the recurve limbs is 7 3/4 to 8 1/2"."

Thanks Erich.
I prefer old recommendations.

Martin
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Old 12-27-2012, 09:21 AM
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Default Re: Question to DAS experts: Brace Height?

ShortDraw, I will check that tonight (1/4" groove showing).
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Old 12-27-2012, 09:36 AM
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Default Re: Question to DAS experts: Brace Height?

I think you will find different limbs like different bh's. The Win&Win limbs my wife and I shoot (shorts) like 7 3/8. The HEX 6's I had liked something in the 6.5" range and the Morrison super shorts likes 6 3/4"...all on a 17" DAS Gen I.
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Old 12-27-2012, 09:55 AM
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Default Re: Question to DAS experts: Brace Height?

I"ll have a 55" 18 strand 8125 endless loop by late this afternoon. I'll see how it braces with that.
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Old 12-27-2012, 10:00 AM
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Default Re: Question to DAS experts: Brace Height?

Pre-load on the limbs will also make a difference in where the sweet spot in your BH will be, at least that is how it has seemed to work with my bows.

Have a great day,
Kasey
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