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Join Date: Mar 2003
Location: Tioga and Potter Counties
Re: Arrow overhang from rest
BBD is correct in that lengthening an arrow will lessen the stiffness and shortening the arrow will increase stiffness. All arrows are graded in stiffness based upon how far (tenths of an inch) an arrow bends or deviates from straight when a 1.9# weight is suspended from the middle of the shaft supported at each end (28" apart).
With that in mind, when applying it to the real world, the 2 ends of support are the point (point weight and insert weight) and the nock. The stress is applied by the string. The longer you make the shaft, the more flex, or bend you will put in it. That is why when you look up which shaft to use, you will get a table that takes into account shaft or drawlength and poundage.
Also from a practical point, you have to look at your broad heads and how you grip the bow. You may just want your broad head out in front of your grip at full draw.
Finally, you need to decide just what is "good enough" for you, and that you are confident in your shot and your equipment. I know guys that start with a bare shaft at 30" and keep trimming at 1/4 inch increments until it bare shaft tunes at 20 yards. That takes a lot of time and patience, and probably something you are not going to get done at most pro-shops this time of year. I will say that weaker shaft arrows are easier to tune than stiffer shaft arrows.
As far as foc- look at adding weight to your tip (either heavier point or brass inserts then see how much your arrow drops at longer distances. You may see no difference at 20-40 yards, but your foc will be up as well as your KE, and it will fly like a lawn dart!!
Wishing I was at camp!