Hi Freddie,
The rotisserie is bolted where the bumper brackets go and those areas are epoxied already under those mounts. It’s spaced away enough that it’ll be painted pretty much everywhere it needs to be (visible) and any unpainted parts will be covered up when the bumper brackets gets installed. But for protection, I will mix up a couple ounces of single stage and dust those areas with the touch up gun prior to the bumpers going on.
The pinholes can be from one or two things. Usually an air bubble in the filler, or they will be in one of the heavier high build primer coats. Sometimes with the filler, if a piece of debris finds its way in there accidentally, it’ll be removed when sanding leaving a little void. But usually it’s all from air bubbles in the primer or filler showing up.
Make sense?
Cheers
Dave