My results are everything maintains sub MOA. I’ve never seen groups open up as a result of using the gauge. Truth be told however, I don’t have any empirical data to back it up but I figure whatever I can do to keep things concentric is contributing to accuracy. It feels good, so I do it.I agree....what are your results when correcting? My 1/2 MOA rifle shot 1.5 MOA groups when I corrected.