I think you can reach those goals with the stock barrel. I run a 22lb and lately a 24lb captive ISMI RSA (from Glockmeister) when shooting at this level, no smiles ever. The springs seem to help keeping the slide off the frame and help with policing the brass, at the expense of greater felt recoil. For whatever reason the 24lb ISMI RSA seems to really change the recoil personality, it gets fairly jarring. Not full house 44RM jarring, but not the dreamy recoil the stock and to a lesser degree the 22lb spring provides.
I have settled on a more sedate 1225fps with 180XTP's as my everyday load. It gives me everything I want and with the 22lb spring, I still get a reasonable follow up and the frame is spared any battering.
Last edited by WeeWilly; 06-26-2012 at 00:53..