We use heat from the TM. Sure, it will string a bit when it's first melted, and stick to the
glide, but a few choppy heat passes gobbles it all up.
If you've got a lot of gum to remove, you don't want to stop and agitate every piece out when you can do it from the wand. Same thing for candle wax -
HEAT.
Time is money, as long as you are still doing a great job cleaning!