Does invisible thread melt or scratch?

Superior threads sells a High heat invisable thread. There has been much discussion on the some brands melting. I am an fanatic on pressing and have never had the better brands ever melt. There is not much pressing typically once the quilt top is completed and its just used for the actual quilting. It has not had an issue with the dryer either.
As far as the scratching goes if you remember to trim your threads right at the start if a stiching line there are no tails. Its the untrimmed tails that can be a bit scratchy... more of a nusance since invisable thread is stiffer than regular cotton or poly thread. Once I got in the habit of trimming at the start and then at the end , it made it much easier to find those little threads , after all its supposed to be hard to see.
I do find I need to take a few more stiches either in place or reverse to tack or secure the line of quilting... its slippery stuff and needs a few more stiches to really hold it.