Bullet lube choice
Review of CBA match equipment lists shows little to no agreement on bullet lubes, mirroring my experience and test results. No matter how bad it smells as you mix it in a pan on the stove; no matter how infuriated your wife becomes; no matter how much you pay-to-whom, for their secret recipe; reasonable bullet lubes deliver the same accuracy.
Threshold: Any lube listed in CBA match results by persons finishing anything but last.