[TIMTAPE]

Just to add, I'd probably not change head height but try to find ways to temporarily flatten the ridge in the tape, so the tape runs flatter across the play head, and the tracks arent so "pinched" closer together due to the crease.

I normally only custom adjust head height when it's suspected the tape was recorded with non standard head height. Another case is on a mono recording where we play it back with only the left or right track head section, moving the narrower track to the best sounding position vertically, avoiding the damaged section. I take it this was your aim.