I did the 3M glue mist trick on both, maybe I didn't put enough down, or just didn't get it over the corners/edges down onto the "sides" of the piece. The pieces I'm doing are about 7 x 7 square, but only 1/4" thick. It's going over the edges and sharp corners onto the 1/4" sides/edges that presented a problem. Up on the main/top flat surface there were no problems.

Neo