Has made me be a better shooter. It has pushed me to levels of understanding, action and use I honestly never really thought about. In a package that begs to be used, abused and thought about. While some folks claim .41 mag ballistics. Others claim it's on par with .357 mag. I don't know what ammo the .357 mag boys are shooting? I can shoot the same bullet weight in class at basically 200 fps second faster across barrel length and make a bigger hole. And Sd makes up for that? While my current 686P, lock and all is a fine weapon. There is no comparison. I fell for the 10mm years ago. And the Colt over priced want to be 10mm DE was a HUGE waist of money in the day. The G20 made it a NUKE round! I may never own another Glock. And at this point I never have. But I will always own a G20!