Dec 13, 2017, Squeeky boot liners

Do any you wily veterans of the uptrack know of any method to silence a boot liner that's moving a little inside the shell?  The liner heel is lifting just enough to squak all day up against the shell.  I think the heel area gets moist as the day wears on. Short of tightening my boots I was thinking maybe putting some duct tape somewhere or talcum powder (sounds disastrous). Anybody have any experience using duct tape to solve boot issues?
Any advice would be mucho appreciated as I fear the continuous ongoing never ending squeak is going to get in my head next tour.

Oops that was a double post I didn't see the original thread when I logged in
Moderator can delete. Thanks