If you are good at tuning your bows, then switching shouldn't cause any significant problems. I find that when I get a new bow, I shoot almost as good the first day I get it tuned. It then generally takes a few weeks of steady shooting to really get comfortable with the feel of the new grip. Even so, I'm condfident immediately, because I know I've got a good tune. My grip, anchor and form does not change, no matter what I'm shooting. I'm also very careful to match my drawlength exactly, and that is important. I do not go by the drawlength that is written on the bow. I actually measure it and then adjust the bow, so that it is within 1/8" of what I want. If you know that your old bow's drawlength is perfect, then measure it, so you know what to get on your new bow. Once again, pay no attention to what is actually written on either bow.

Good luck,