I have early rise. So, might not be rockered enough. As I recall, I had to move my end vises inward towards the center for some reason when I first got them, maybe that had something to do with it? ....I went downstairs and took at look at that, and am thinking it might have been ski length, NOT camber, that caused that move.
However, the vises you have pictured in your post had a description saying they were a fixed height:
Tip and tail supports are fixed height.
Mine have a thumbwheel on them to adjust the height. In your picture I am not seeing where you adjust the height. But maybe the picture is deceiving.
Possibly because I am grabbing the binding plate, I have at least 1/4" MORE ability to lower the end supports beyond where they currently are. Eyeballing the ski, it appears to be pretty much uncambered end to end in the vises, i.e. no arc. I can see where there might be some skis that might not fit in this vise (?) but maybe by moving the ends in a bit they would rest on the supports. Sure a pain in the neck if not.