Whole lotta sanding 60/80/120/180
My new spray stand allows vertical and horizontal spraying. the 16" length of 1/2 inch EMT fits into a union on the vertical piece of EMT. For the horizontal the EMT slides into a piece of 1/2" PVC which is pinched with a C clamp to allow rotation while holding the bass in place. High quality duct tape keeps it together
Sealer/Sand 240/Sealer...pup routes were made deeper using the Rickenbacker forstner bit and a chisel method.
Scuff sand with 400, then 2 coats Mohawk nitro Piano lacquer 1/2 hr apart, no sanding in between coats
I think 2 more coats should do it. Scuff sand first.