I need to adjust my Salomon Z10 binding to a slightly smaller boot. They are mounted on a sliding rail on a system ski which makes changing the size easy but I know that DIN settings theoretically change. I doubt I've made enough of a change in size to matter as I've gone from a 310mm length to a 300mm.
According to this calculator there should be no changes.
I'm not getting real excited with all these variables and the charts look to me to be extremely vague. Lots of wiggle room in these numbers.
I also made sure the change in distance between front/rear is snug enough. I've noticed the tighter the fit between toe/heel the more this mark moves to the rear. From what I understand as long as it is somewhere between the forward thicker mark and the rearward one the tension is appropriate.