RE: Bow Weight
In my experience,when the strings and cables are the right length,the Hoyts hit their intended weight and stop.Sometimes with factory rigging you MIGHT get an extra pound or two but I really haven't seen it much with my Hoyts.
I believe with that low of a poundage,I would get the 50-60, especially if you think you will ever want toincrease the poundage,you don't want to lock yourself down.