Using rage gold for filler. Working pretty well and sands pretty well as others have reported. Using a DeWalt adjustable speed RA with adapters to hook up to the shop vac and a 3M sanding block that hooks to the shop vac. Both are working very well to mitigate a lot of dust. Also using dura blocks a good bit for the blocking, they do not hook to the shop vac so there's a decent amount of dust from using those. It's a very slow process for me at least.
Also, been using a mix of wet black guide coat and dry white guide coat. The black works nice on the filler. The white works decent on the black gel coat. Anyone who's done this before have any comments on what they've used for guide coat?
Comparing with Greg my panels were glued together horribly so it's leading to some extra work I think.