Thanks David. I have used the windex method myself - great technique. Clearly the ARF manufacturers don't use that method, and as you indicate some use the sticky back covering. I believe the plane referenced above uses Monocote, so they must be doing something to reduce air bubbles between the layers. Any idea on how they build those intricate patterns, yet do it fast, and with a high degree of quality?

Again, just wondering out loud...

-MA