My whole long life I have never found a good chassis paint, then Bonneville came along! I think providing accessibility and good work practices are best! Use a color that can be matched with a spray
ON THIS SUBJECT . A GUY SHOWS UP AND SAYS THE BEST STUFF IS BENJAMIN MOORE ALKYD ENAMEL FLAT BLACK ON SCOTCH BRITE SURFACE WITH GLOSS TOP COAT, COULD BE. JACK
It seems to me rails and flaps are something that fixes an existing problem, after the fact. Nascar's turn and get bumped, we don't. Adding an anchor would help also. I believe its a design problem.