Replying to Demo boots/ my feet hate me

Dear god I wish ski shops would offer a fleet of demo boots the way they do with skis and such. With the amount of times I’ve seen bootfit tees and had them set me up with a boot that feels “shop good” (slightly uncomfortably tight requiring some break in, good feeling flex, locked heel etc etc) and then after a few days skiing the boot feels too big, or too soft or too stiff, or some other bullshit like that. Even after heat molding, buying aftermarket liners, eliminator pads/gel pads, j bars etc, I can’t find a boot that feels good to ski. I always end up cranking my buckles ridiculously tight to get a snug/responsive fit on a proper fitting/professionally fitted boot to the point it hurts my feet and shins but the boot still feels loose the whole day on the hill. I would happily spend some good f*cking money to demo some boots so I don’t end up spending hundreds on a boot and fitting only to hate the boot a few days later. Anyone know of any shops in mainland BC that demo boots? I’m tired of my days on hill being ruined by my boots. I’d also like to add I’ve skied a few different brands over the past few years, none seem to offer the responsiveness/comfort balance I’m after. Such brands are full tilt, Salomon, and most recently atomic.

Sorry for the rant but I’m bugging the frig out. Also if y’all have any tips on how to avoid buying a boot that’s gonna feel like shit in a few days, please shout it out, I would appreciate all input greatly.

*** inb4 get full tilts although I might just buy em for the customizable flex so I don’t have to worry about buying a bott too soft/stiff. Dalbello is an option in that regard as well.