ahh, the old tape debate.
We used to use both 2" & 3" masking. It worked fine. we are big time converts to clear tape, it works so much better it's not even funny. masking will turn to crap if ink sits on the outside. clear tape doesn't
There are 2 types of rubber adhesive tape, PVC backed 2.2 mil is great. I get mine from Tapezit here in atlanta. slightly better prices than uline. We use a strip around the inside and that is it. No matter how you peel it there is no residue.