Probably correct but like lot testing too many variables in the 22LR world...if you have the time and patience start at .043 with your preferred lot and go plus/minus a few thou on the shims after establishing a solid baseline. Might improve, might be a waste of time...never a waste of time once you go down the rabbit hole, just the satisfaction of proving yourself right or wrong, it's all good. Keep us posted on your results, enjoy.