With Lightfield 2 3/4" hybreds my best 3-shot group (100yds) is 1.5". I really have to do everything right...muzzle flip is the worst problem I've had to overcome. I've got it right where I want it, and opening day is next week, so I'll leave it alone until after the season. Then I plan on adding some lead shot to both the fore-arm and the stock to try and counter some of the recoil/muzzle-flip issues. I've done most of the bells and whistles to it (trigger job, fore-arm "floated", hinge pin, different springs, etc). My dream of a minute-of-angle shotgun still eludes me, though.
I'll keep trying.