It is possible to remove them, and I believe someone made a thread with instructions around here somewhere... but it's tricky and if not done right the UTH can break. Basically, you have to move slow and keep the UTH from bending at all costs. That's why using foil tape is so much easier.

I'd say, try removing one. If you can get that off straight and true then go ahead with the others. If not, you'll have to pick up some more.