It's just a shock cover that I made using two Lizard Skins Neoprene shock covers. Keeps the mud off nicely.
I have yet to send the blown controller back for repair. I was just running 21S, activated regen and blew a phase. I could run 24S, but I might be pushing the controller too hard with the cromotor at that speed. I could try it, with reducing the phase current a bit. I have Lyen 12 fet controller run on 24s with no issues for quite some time. That is running at the edge of its limits though. I feel like I'm running near the limit with lyen 18fet. I wouldn't know where to run the Raptor on 24S though.