IMHO, Monokote is a very good, tough covering, but it takes time and patience to apply correctly. I think some people overheat it trying to work it to quickly. If you overheat it to begin with, your done. Different colors seem to take heat differently, so work your way up. When you're tacking the edges, just hold the iron in place - don't move it. Hold it there for a few seconds to give the glue a chance to activate. Remove the iron and let that spot cool. Don't run the iron along the edge as that will encourage wrinkles and not give you the opportunity to work them out. Make sure you're surfaces are clean. Any dust remaining will prevent the covereing from adhereing completely.

I used Aerokote to cover a GP Spirit glider. Its lighter than Monokote, and the sacrifice is strength. It was very easy to shrink, but every blade of grass wants to pierce the covering. I suspect I'll recover with Monokote next winter.

Brad