I have a number of barrels of samples that I want to get a feel for what they’re like once broken in. I’ve quickly given up on the idea of breaking clay chips in by shuffling them. I’ve shuffled a barrel for up to 10 hours with no visible wear on the edges or decrease in the height of the barrel. I assume chips take upwards of hundreds of hours of shuffling/play in order to feel broken-in, so I was wondering if anyone has tried any methods to artificially speed up the process. Anyone tried sandpaper?