Mickey,
My Krieghoff has 7x65R, 9.3x74R and 470 barrels. The 470 can't be adjusted.
The 9.3x74R shoots fine and I've never touched the adjustment. The 7X65R though it shot fair I felt it needed tweeking for a 7mm. All loads were just barely crossing at 100 yards. While turning the allen key a quarter turn I could see the barrels separating. The gun shoots MOA at a 100 yards from both barrels.
I don't handload so for me this system works well.