One mitigation strategy is to put a small heel riser under the insole. I've tried this and it helps with some fittings.
Last year I made some felt inserts that went inside my sock and that helped some times. Some times it didn't help.
There's this new bootie that can be slipped over a liner then inserted back into a plastic boot that is supposed to help. Haven't tried that one.
Last year I saw a reference to a neoprene half-bootie that goes either over or under the sock, I can't remember which. This one was for non-liner boots. Can anyone reference that one? I want to say that it was posted by @lilcliffy but I'm not positive of that. Anyway, it's something I wanted to try this year to help prevent the inevitable blisters, or even just to cover them once they've appeared - because, like last year, I'm just going to keep skiing.
