I am going to add in frisket film.  I bought some on a whim at a big box hobby shop in the air brush supplies.  I didn't think that it would be all that good, but it wasn't that expensive, and I had read it was used on the studio model of the Enterprise for the first movie. 

My current model build required a lot of taping up.  I tried blue painters tape, no good.  It was too thick, and the details on the model too soft to see through the tape to trim it up correctly.  I started to look through my stash of tools and found the frisket film.  Gave it a try, and was very surprised at how well it worked.  It is clear, so you can see through it, cuts pretty easily, so you do not need a lot of pressure with your knife to cut it.  Great on resin which is a very soft material.  It conforms to the contours of you model very well. and if you have a painting mask template, you can print on one side of the film, cut it out and then apply it to your model.

On the down side, it won't take rough handling.   It will just start peeling up on the corners.  But this will be my preferred method on all canopies from here out.