Yeah I went to Seattle Ski previously, problem was, as you said, very low on selection. I previously got my custom footbeds made there (like $160, stand in the mold for a bit, then they make fiberglass beds). Unfortunately they didn't seem to really help with my particular issue.
I ended up getting some Salomon F4.0s today from SnoCon downtown. Was in the area and they had my size on sale so it was kind of an impulse try-on that turned into a buy. Didn't catch the guy's name, but he helped me for quite a while. We tried taping foam strips to my feet where I was feeling a pressure point, and then heat molding the liners with the foam there. Overall the boot fit really well, except when I flex it, the outer shell (very stiff boot) puts a decent amount of pressure on my tendon on the top of my foot/instep. Everything else was too good about the boot compared to others I've tried that I bought them anyway with the hope that I can fix that up.
I might mess around with them at home or take them back for molding again after a few rides. He said it's free to come back and re-mold them. Aside from that though, it seemed like options are limited and he was running out of ideas.
Regardless, my experience is that in the store it's only possible to spot the major fitment issues, once I ride in them is when I really feel it. So we'll see I guess
Gonna take them out to stevens tomorrow and see how it goes.
I kinda want that dialed in before I take a trip to CO, lest I waste prime riding vacation time fighting with gear.