What he said.
For Highs, at least, if your toes aren't going numb for a month of break-in, I'd worry you ordered too large a size.
The High liner is very thick and stiff. Short term, this means that areas where you have bumps in your foot will have to compress a lot of liner material, and the compression will be slow (due to stiffness). But this short term pain means long term gain as the boot should be locked in tight once broken in and the stiffness of the liner will hopefully keep that fit for longer than a softer liner (think old Solomon TR-9s) would.
For me at least, after painful break-in, the Highs were super comfortable, especially since my foot did not move around in them any.
Note - I didn't have a long break-in for Igors or KSJs. May be due to the thinner liner, I guess.