I'm pretty sure they're air bubbles. I can push on them and some of them give. You can see the bumps and feel them when you run your finger across them. I don't like them, they remind me of pimples! Or blisters, as Top said. I got some IGI 4625 pillar wax in, so I'm going to see if that happens to them too. I put the UA in because I read somewhere it ups the FO load in the 1274, so I probably won't use it for this other wax. I have a bit of 1274 left, so I'll try it without the UA to see what happens... Thanks for the replies!