Yeah, high build primer reduces the need to sand as many of your edges down. Kind of like a spray primer/filler.
I'm half way through refurbing a set of montreal 2's - they were in a hideous condition and now are looking exceedingly nice!
The key thing for refurbs if you're doing them by hand is - estimate roughly how much time you want to take - then multiply it by 4. I have literally given 1 week per wheel as a time marker for cleaning up, getting the rot out of the wheels, sanding down, sanding AGAIN, sanding... AGAIN!, etch primer, sanding, etch primer again, then standard primer, sanding again, then more standard primer, sanding again, then 3 coats of paint (with wet and dry between each coat), then 3 coats of lacquer with wet and dry between each coat and then polish/sealing wax.
