Im late to the party, but first of all, welcome to the forums!
I have been re-learning basic techniques since my return to the hobby. By trial and error, found out that the best "bang for the buck" when it comes to masking tape is to use the "good stuff" (Tamiya) to demacate the lines (and burnish down with flat side of your forceps or whatever works), and painter's blue tape to cover the rest of the model. I have left tape on models for weeks (months?); no residue whenI peel them off.
On my current ship build, I tried something new. I masked both sides of the waterline with Tamiya tape, THEN covered the upper side AND the waterline with blue tape. I then airbrushed the bottom part of the ship (antifouling red). After drying, I masked the red paint, then peeled off the tape covering the waterline... painted THAT flat balck..covered.. then peeled off and did the haze grey thing... hard to expain in words, but play around with the masking, you may save some time (and tape) by masking in layers.
And keep posting pics! cheers