ok finally decided to buy kool glide. Bought the kool glide kit with all the goodies. Decided to practice with it on some carpet rems at home. Followed instructions, used premium tape over the supplied seam board...could not get it to melt the tape. Even tried it set on high and did it twice over the same spot.....would get the carpet warm but not the tape. Carpet was a 50 oz frieze but didn’t think that shud make difference. Am I doing something wrong or did I get a dud unit or dud tape?