Roy beat me to it, i edited my post with the same pic...looks like we saved the same picture.. photobucket took for ever, guess everybody is down loading their Christmas pictures??.. If nocks are even, you can follow the information off of the pic Roy posted..I had one with a similar twist in it, I changed the string and it pulled straight, don't know why that worked but it did..I had another I was building that had a slight twist to it, I strung it up, twisted past center, left it strung up over night and that fixed it..I still have all the bows I have built and so far all pull straight. I have barely filed a string groove into the belly glass on my last few recurve builds