Intuition or Zipfit in UPZ?

[Jonny]

I'm hoping some of you have some experience in getting snug UPZ to fit well. I've been using AF600 27.5 which  are comfortable but just a little too sloppy for best performance. My heels tend to come up on toeside turns for instance. I picked up a lightly used set of five-buckle UPZ (I think an older RC10) which are 27 shells - same size I wear for skiing on my 11.5 EEEE feet (my ski boots are Speedmachine 130 blown out to about 106mm). These UPZ shells give me about a one-finger fit without the liners, which is the same as my ski boots. I think I SHOULD be able to get them to work by having the forefoot stretched a little wider IF I can get liners which fit properly. I Imagine the best choice is Zipfits but those are brutally expensive and also there's no one near me who fits them - I'm 2 hours from Stratton. Has anyone had good experience fitting tight shells with the LV Intuition liners - either the Dreamliners or the Plug Race? I normally wear old cork Superfeet orthotics if that matters. Thanks!