I don’t think there are many differences between the former wedgeworks LBK and now SM10 60.06K. I’d say the differences are comparable (if not identical) to the changes when moving from SM9 to SM10.
I use my belt sander and 120-150grit. It’s taken some practice (and I still make ugly ones!) but being able to keep the wedge moving and not hold it in one spot does a lot of good towards make it more streamlined. I also have a ~120g sanding sponge that I use after the belts. I think Vokey raw is great because you don’t have to get down to a super fine/shiny polish to blend in