Your resin was propably POLYESTER which will melt white foam.

Solarfilm is still around and works well. Flouro orange, white andf mettalic green will give you a contrasting scheme.

The original colour scheme for the HiBoy is not a good one.

Dark underside light topside with a WIDE CONTRASTING BAND ON ONE WING is better.

Disorientation is always a problem when you are learning to fly.