Painting Hard Top (SMC)

[DADS1971]

I am in the process of stripping the original texture off of my 1971 top, down to the bare SMC. I see where you can spray the U-POL Raptor right over the bare SMC. I made some repairs using West Systems epoxy and have used body filler to smooth them out. Can I spray the Raptor over the bare body filler or do I need to primer it first. I also see where U-POL sells the Raptor already tinted white, GM 8624, Artic White. Is this too bright of a white for the blazer top?