Draw Length and String Slap
3rd post in 3 days...lots of questions for the newbie. My draw length's set at 30 which was calculated using the wingspan/2.5...I'm 6'0" tall but have always seemed to have longish arms. Question, just got back from the range and am having trouble with string slap, any connection between that and too long a draw length. I shoot with a D loop, '07 Bengal, Scott barrel release.
Draw Length and String Slap
To answer your question; Yes, the bow having too long a draw can result in string slap.
I wanted much to agree with copterdoc, but his first sentence threw me. However, I do agree with his claim of height and draw length.
The formula "WS / 2.5 = DL" has never impressed me as being the choice to use. Figure it and you will find it runs off as WS shortens and lengthens.
The formula "WS - 15 / 2 = DL" remains consistent throughout the lengths found.
Try this; 72 - 15 / 2 = 28 1/2". This for a 6 foot man. 6'2" = 74" - 15 / 2 = 29.5"
Same WS of 72 / 2.5 - 28.8" Same 6'2" = 74 / 2.5 = 29.6". This formula shows draw length .300" longer than other formula and then gets shorter, now .100" with 2 inches of more WS.
Both formulas though have approx. +/- 1/2" for error. Several things come into play. Type of release, size of hands, length of fingers, facial features and so on. And some bows run long for draw length (somehow never short).
Now for the copterdoc's first sentence; "The d-loop has nothing to do with DL. It only effects the release length." Find and look at the draw length diagram for a bow. Normally, the draw length is the apex of the string at full draw to the depth of the grip plus 1 3/4". Actual draw length, apex of the string at full draw to the depth of the grip is just that, taken from the apex of the string where you hook your release or fingers. Add a loop (extention to hook release) and you have effectively added the loop length to the draw length of the bow. Now, to maintain your perfect anchor point you have to change something, release length or draw length of the bow. For me, using a index release, I have my bow set to 29", release shortened as much as possible and still be able to hook up. Using a thumb or back tension release with a loop, 5/8" long, I have my target bows set to 28" of draw.
No, a loop doesn't not effect the bow's true draw length nor does it effect your draw length, but yes, it does effect fit of the bow to you. Again, something has to change. Do you change your perfect anchor point? I think not. So, you shorten the length of your release aid (if possible) or you shorten the draw length of the bow.
Weird, but true; Plush, a real good indoor shooter, stands a good 6 foot, three inches tall. His draw length is 30", his, not the bow's. He dislikes anything touching his face and uses a super long loop. The draw of length of his bow? 27". Who helped set him up? A Senior Pro Free Style shooter who is a former Triple Crown winner and who has won Vegas 3 times, the last being just this year.
Draw Length and String Slap
One also has to keep in mind proper grip. With the proper grip and a slight bend of the elbow (pointing out and down - say 45 degrees) the forearm is much removed from the line of travel of the string. Proper everything and string slap is not a issue except through wearing heavy clothing. We've put pictures of the what is deemed a proper grip. The line off the knuckles of the hand and fingers are somewhat positioned as the the bent elbow, pointing down and out similar to the above 45 degrees.
I've shot bows with 5 1/2" brace heights and not had a problem. Other, proper grip and using a straight arm the forearm is still removed from the travel of the string - maybe close, but a lot of us survived. Personally, I like a brace height of 6 to 6 1/2". My Ole War Horse has a 6 3/8" bh and I've shot that bow untold thousands of times.
Draw Length and String Slap
It's that we don't forget mentioning things. It's just we say it or tell it so many times we get lost in transit. This should be the next to last reply of the Post. LD Falks is indeed a archer coach most notable.
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