Thanks. I was considering them, but got side tracked because I'm cheap, lol. They're asking $4 for the tape and $7 to ship. I think I would feel much better if they listed $7 for the tape, and $4 for shipping, haha. I'll have to get some eventually.
I got the multimeter though, best investment. As for polarity tester, I usually just re-orient the mag the other way if it's out of phase, :approve:. Trial and error.