COMMENTS on ultra cote are intresting since i found (and it was advertised as ) it needs MORE heat than monokote , does not shrink as well over open surfaces(minor) and can yellow over time in strong sun.advantages are that it is more realistic(plastic shine is not present)and MUCH easier to apply due to less gases during heating. Ora cover is basicly the same material. GOOD PRODUCT.
for practice covering you can pick up "scrap "/crashed airframes and purchase partial used rolls of covering in the unpopular colors cheaply at swaps.