[StuBeeDoo]

I may have asked this question before, but I can't remember where and I can't remember the answer.

My latest repaint project is a test-car re-livery on an SCX Toyota Corolla WRC.  It's now been in my isopropyl alcohol bath for 36 hours and much of the tampo still won't shift.     The problem areas are where the tampo is applied to the bare white plastic - where it was applied over paint the tampo came off with the paint, no problem,

Any suggestions, other than "mechanical" means (T-Cut, or similar) how I can get the tampo off the plastic without it being noticeable after painting?

Thanks in advance,