Scarpa Inverno Liner Heel Slip

I have used my Invernos for Ice/Snow for a few years now, and they do the job. The only problem is that the inner liner slips about an inch from the outer shell when I crank on them hard. If I cinch down the outer shell to the point where there is virtually no slip between the liner and shell, I loose blood flow to my feet within an hour.

Anyone else have a similar problem, or suggestions to a solution?

An inch of slip sounds like they are simply too big for you, at least for technical ice. But that being said, I doubt an insulated plastic double boot will ever be as precise as a thinner single boot.

Scarps are built for those with wide feet. It sounds like your heels are not thick enough for the boot.
Either
-look in to another brand and boot (la Sportivas are skinny)

-tape up your heel to fill up the extra space,

-you may have to look in to an heel insert for your boot.

-lastly the Invernos is an plastic boot your local ski shop might...might, be able to heat the boot and press in the heel to better fit your foot.