And you've also mentioned several times that you're skiing very old boots. When's the last time you've been to a boot fitter? Not trying to be mean or contrary, but for your skiing why not just ski in AT boots and solve the problem? Several bindings will be both alpine and AT boot compatible by next season. Some like the Marker Lord, already are.
I''ve NEVER been to a boot fitter, totally DIY because no boot I own cost me more than $40 delivered and no ski I ski cost me more than $250 delivered WITH bindings. When I lived closer to skiing professional boot fitting was pretty much a luxury reserved for top pros. Nobody I knew had pro fitted boots, not even the reps. I see a lot of threads here that seem to indicate that people with the slightest bit of problem feet spend hundreds of dollars and several visits to get a pair of boots professionally dialed in. There is no boot fitter within 30 miles of where I live. And the closest place is pretty lame. If I lived in a ski town or had a documented deformity like horrible canting or a shorter leg I might find more value in a professional boot set up.. Other than that I believe it is pretty much a bunch of hype to polish a turd over and over (current, but extremely antiquated ski boot design).
Honestly, my feet only hurt while in my stiffer boots and they only hurt when standing in long lift lines. They actually feel pretty damned good while I',m actually skiing. However, I believe a lug and sole platform that actually matched the shape of my feet and width of the skis better is a win across the board for all, except those skiing skinny skis under stack height restrictions in racing.
I'm actually pretty happy with my boots but always stir the pot because I'd love to the the wider platform available in a few years when I've worn out what I have.
Wow, countless generalizations and a ton of miss information in this post.