I have hunted with a 210 (12 gauge) for years. I do not consider the recoil to be noticable. When you see that deer, your adrenalin is pumping and generally you only fire one shot. With the 20 gauge, even magnums cannot be worse than the 12.

Save your money and use it on a good scope or a trigger job. My trigger pull was 9 1/2 lbs! After you fire at your first deer, see if you remember the recoil.