I also think it sounds like you're putting too much on. I know when you're applying, that first layer doesn't seem like much, but it really is! Make sure you are hitting your trouble spots with the small brush before you do overall coverage with the buki brush. I don't use much mineral veil at all either. I just do a light sweep over my face at the end.
As for the containers, I haven't had a foundation container with the sticker cover in quite awhile. Mine have the dial to open/close the holes now. I switched to matte finish a few months ago. Do the regular BE containers not have the dial? My blush/all over face colors still have the sticker cover, which I don't put back on. However, I store them in small drawers in the bathroom, so they never tip to spill out into the lids.