RE: To those who have "crossed over..."
Rick,
Not trying to tell you what to do but I agree with the pro-shop guy.
If you shoot with your dominate eye, your depth perception will be much better and your accuracy will improve.
Actually, my holding arm wears down much faster than the one I'm drawing with. Especially, with my 9lb. 3-D bow.
You would have an advantage there with your strong arm holding the bow weight and absorbing the vibration.
Your drawing arm should build up strength pretty rapidly from shooting.
You can back off the poundage on your new bow at first and crank it up as you get stronger.
Personally, I believe, you would benefit from the switch.
Good luck with your decision.
Sag.