The last daughter will leave for college in 10 days. I have been given a Hoyt Provantage bow, but it has a drawlength of 31", and I only have arms enough for 29". Is there any way to shorten the drawlength, so that I can use this bow, or is it just too much trouble. Third daughter in college will make three at school all at the same time. Needcless to say, $ is an issue. Thanks for your input.