I wouldn't worry about it, If, you tiller it properly. Pigger, the osage bow I have hunted with for the last five years is 58# @ 29" and 60" nock to nock (really 59 3/4"). She has done just fine, having taken over two dozen critters. I have built several 58" bows that were fine out to 28" but didn't shot them much due to the finger punch and stacking at 29".