I hear you. My CCO was extremely accurate when I did my part. One time I put three rounds in one hole at a 25 yd target while standing with factory ammo. Then I got excited and threw the next 2 way, way off. Hostage targets at 10yds were cake.I also traded my 1911 for the G21sf. My S&W SS 1911 was the most accurate hand gun I have ever owned and I knew the G21sf would never be as accurate "for me". To me my 1911 was more accurate and felt perfect in my hand but the reason I traded for the G21 was that I loved to shoot the 1911 but "HATED" reassembling it after cleaning, it was a Pain.........
I am happy with the G21SF as it is accurate enough and holds 13+1 rounds. I was surprised the G21 chambers a round much smoother than my 1911 and although I have only shot 300 flawless rounds with it, it is now my home defense gun.
However, in the end, after only about 800rds through it it started getting picky. I was tired of throwing money at mags/followers/ammo to figure it out so I sold it locally. It went to a good home to keep a cbob company.
I think my G21 could be as accurate but it will require more work from me. Those DW triggers are sweet And I can say that felt recoil on the G21 is greater than that of the CCO.
My one beef is that a G21 on your hip with a full mag can really drag your britches down! The galco fletch is ok, a kydex blackhawk I have allows a little flopping. I might have to get a shoulder rig for this thing.