I used the kit again over the weekend and started getting really pissed...until I realized the chip that I could just not get the paint to cover was a tiny bug smushed into the paint
Otherwise, all the chips I earned on the spring cruise and my July MN lake trip have been fixed, with the exception of one on the mirror I forgot about until after I had cleaned up. I'm sure I'll earn more on the poker run this weekend though, so I'll do it again sometime this winter!
8 months since ordering and the kit still worked perfectly, the paint and chemical just needed a good shaking.