squidkid, generally speaking one can usually expect a gain of roughly 20 fps per 10# increase in draw weight, assuming the same arrow is used. Among the bows you tested, I'd really recommend you follow your instincts and get the one that felt the best to you, and don't worry about the money difference if your choice happens to be cheaper. They are all quality bows, so go with your gut... The vibration can be tamed with today's technology...