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.
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
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.