Yeah, not good. I've got a few Mag drives used, and all the screws were still nice & shiny. Between the broken head & rust, that leads me to believe that someone was a little too rough on the screws getting to the impeller, and not only broke one, but scratched the chrome coating off of the others, exposing the metal underneath. I'd think if this were a typical problem, we'd all know about it around here.........
Wanna calculate the cost of that new reef tank?? Take your worst nightmare, double it, and you're halfway there.