How did you set the Super Up?
What did you end up using for a Recoil Spring/Guide?
Did you install a Shock Buffer?
Did you do anything special to this build?

The G20 10mm has pretty much ended up being the Glock to use for Bear Defense as well as hunting. Your build should give a G20 some competition in the hunting field. I have had a 10mm, but not in a Glock. Mine was a 610 S&W Revolver. I carried the 610 for years as a Deputy Sheriff. All of my gun battles were with deer hit by cars. Hot 10mm worked much better on deer than the 40 S&W. Most of the Sage Troopers kept their old 357 Magnum 686 S&W in the patrol car for deer as well. I also had a 625 S&W Revolver factory chambered in 45acp. I had it rechambered to 460 Rowland. I could have loaded 45 Supers fast enough to be happy, however I also own a Colt 1911 that I did not want to hurt by shooting the wrong ammo in it. That is my only concern with with the 45 Super. Making sure that the ammunition does not get in something not designed to take it.
Keep us posted on your project.

Bob R