I have snug but comfortable boots with custom footbeds, canting and shell work on my boots but I still tend to ride the inside edge of my right ski. I can get the ski flat but it does not come naturally. The inside of both boots are canted (built up) 1.5 degrees and my boot cuffs have been adjusted as far out as possible to help match the curvature of my bow legs.
My last day of skiing in that ski area was my boot fitter's day off. Another employee suggested I add a shim (wedge) under the inside heel of the footbed in my right boot and gave me a handful of rubber wedges to try. I have no reason to doubt his advice but the approach seems counterintuitive.
The canting and cuff alignment have moved my knee into a better position but I still can't get that right ski flat on the snow. Seems to me that placing a shim under the inside edge of my right footbed will put more pressure on the inside edge of my right ski and make it even harder to get the ski flat on the snow but I would agree that putting the wedge on the outside edge of the footbed seems to counteract what they've already done with the cants and the cuffs.
My next trip I'll be at a different area so I may be starting again with different people. I need you help in managing the process. Any comments or advice?