Originally Posted by
bfisher
Take a 60# bow set for 60# and a 70# bow backed down to 60# and the former will perform better, but it very very slight. The 60#er will be a little more quiet because the rigging is tighter and it will be just a couple fps faster because it is being used more efficiently, but let's put it this way. If you once draw 70# and now prefer to shoot 60-62# the difference is not worth going out and buying another bow----unless you just have a hankering for something new or are looking for a divorce or an excuse for getting one. LOL.
If you are getting a new one or just starting out then you'll find that most 60#ers will peak out at about 61# to 63# anyway. A couple twists to the cables could make it upwards of 65# which really isn't going to hurt anything, especially the limbs. Those same limbs on a bow with different geometry might be used for 70#.