I have attempted to use Monokote on my Eaglet with very UNSATISFACTORY results and I will never use it again.

As you said, it does not want to stick to ply very good. It took a lot of heat to finally stick it to my fuselage and by that time heat marks, creases and other dirty marks were showing thru.

I have used Ultracote and Coverite fabric on planes and will soon be trying Sig AeroKote on my Falcon III.