Having no amount of spray painting experience and just a humble tinkerer and DYI'r I have gotten runs and orange peel when using Spray Max products. I have been impressed with how easy each were to fix. So yes I did rub out with 2000 grit wet paper (coarser grit on a run) and used a hand glaze polish to boot. Here's a bit of peau d'orange I missed on Holdsworth Sirocco I did from scratch.

Wonder re wisdom and longevity of spraying clear coat over bare steel. Perhaps someone has experience with this.