Replying to Full Tilt heat moldable liners in Salomon boots?

just wondering if any of you have tried this and if my idea would work, but anyway.

my boots just don't fit as comfortably as id like them to. little loose around the ankle and too tight around the calf, but ok on the foot mostly. honestly i can deal with it but if i can make them better, id like to. i was wondering if maybe getting some heat moldable liners could help me make them fit better for me? the reason i said full tilt is because they're the only company i know of who makes that. so. yeah. help?