It's your back and I know what that's like being disabled. I couldn't hold onto the 357 as easy as the glock, I have had both. The guys are right dollar wise, but if you have pain like me, you are going to be better off with what causes you the least amount. You don't want to flinck because of the recoil going up your arm into your spine. You need to try shooting the 357 first.I owned a gym and never would have said this even 10 yrs ago, now everything is a compromise. I can still shoot my 45's witout much pain, my revolvers are all gone, but that's just me.