You know those EZ masks that are meant for canopy frames? I've never used them before, but recently bought a few of them for the kit's I'm working on (Tamyia's 1/48th Wildcat, Hasegawa's 1/72 Marauder and G3M Nell, since I know you're wondering). Have any of you ever used them? If so, what should I expect? What's the best way to use them? I assume that you have to line them up perfectly before applying them because they would be difficult to impossible to adjust once they're on the model?