Yeah the plan is to just stick to the expected life e.g. 400 sides (or fewer). I know it's a racket how much they charge for these things, but ultimately it's pennies per side. The Delrin wand, as an example, would come out to about $.20 per side if I cleaned 400 sides and throw in whatever fluids cost and it's like $.50-$1.00 in supplies to clean a record/2xLP, so I'm not super frugal there. Just more or less trying to make sure there's nothing flawed in my approach given how this happens routinely (albeit sporadically).