Unless you can find one used, it's a moot point, eh? I don't have anymore so someone else will have to answer that question. The SkiMan/Toko/Swix/Maplus/etc ProSharps are indexed at each degree, but can be 'set' to anything, BUT it feels like it could move.
Attachment 510290
SVST quit making 0.5° side beveler shims because there wasn't much demand. And FTR, I spent quite a bit of time with an SVST Pro bevel meter and also a digital angle finder and a true bar measuring along edges. There can easily be a (+/-) 0.5° variation along an edge and I think you might be chasing shadows at some point. Especially if they are soft snow skis:
https://www.slidewright.com/Edges/me..._pro_meter.jpg
https://www.slidewright.com/Edges/me....0_digital.jpg