Masking Question

all the way

Same here. Several light coats helps keep paint from "wick-ing" under the tape.

I usually paint in relatively thin coats so effectively everything that is masked has been left to dry several times already. After the last coat I usually go ahead and pull the tape, but even then the paint is usually dry to the touch since I normally paint with acrylics.

I remove it right after I paint the model. I've found that if I leave it on for a while there may be a chance that the still wet paint will run under the tape if it hasn't already. just my