"He who marches out of step hears another drum." ~ Ken Kesey
Looking at the Uline stuff and unless I buy 72 rolls the price I pay for PMI is a little cheaper and white, for some reason I prefer white tape.
The PMI I get is not split tape. It's 3" solid white, not sure of the mils but it's around $5.38 a roll.
I just ordered a case of the 3" rubber tape from Uline 2.5 mil. I have a press as the test bunny now. It seems pretty tough. You can't tear it by hand like the split tape, but if it works I will probably switch to it.