Ah, that makes sense that they have one then.
Phillip, that’s awesome. I know a few people who own and run them, I think they’re under utilized in the US. The finished product is more precise than sanded. This is my guess but based on my experience with hand planing it is considerably less expensive and faster to plane a finish than to sand to one. I spend less than $50/year on abrasives and finish parts more rapidly than I can with a DA.
I finish parts in one hand plane stroke typically and they remain dimensionally accurate. From those who super surface they tell me that they machine plane slightly oversize then count strokes on the super surfacer for a finished part that us dimensionally perfect and finished.
This makes certain projects a breeze. Stuff like timber work where it requires multiple plane strokes over a surface is better performed by super surfacer. Shoji frames just the same since they are so precise and chasing a minor tearout literally ruins the part since it spoils the fit.