Welcome to the Newschoolers forums! You may read the forums as a guest, however you must be a registered member to post. Register to become a member today!
Hi Mardock,
Its all relative to how much space you have. You're pretty much on the right path. You can put in whats called a volume reducer. It sits under your liner on your boot board. You can get them in various mm thickness'. It will lift your whole foot in the boot and provide more contact.
You can make one youself if you have some dense foam handy. Trace the underside of your liner on the foam, cut it out and then stick it down with double sided tape.
If a volume reducer doesn't solve your problem, there a variety of shims that could be installed for reducing excess volumes in different parts of your boot. Basically if problems persist, see a bootfitter.