I wouldn't say all bindings. Most that I've run into have the adjustment. The part where the highback attaches to the heel cup will have a set of holes. You can utilize these holes (that's what she said) to rotate your highbacks in order to align it with your heel edge.
Look at this picture:
Do you see where my highback attaches to the heel cup? Look next to the screw, you can see holes on either side. I could move the screw to either hole to rotate my highback. The inside of the heelcup has the same holes that you can utilize.
yah, that's pretty much what i thought you meant. i did it once before but didn't really notice too much difference (probably a comfort thing) so i never bothered with the other bindings. kinda similar to comfort for bindings w/ cantbed for those w/ wide stance
btw, forgot to tell the OP that those are nice salomon f20 boots.