Well, I finally retired the MRS4 and she's now a shelf queen...Here's the latest ride: CF chassis, ball diffs at both ends, and aluminum body shocks. The chassis is made for 7cells, so I'll be doing some battery reconfiguring, as well. It's too early to tell how it'll run, but looking at all the adjustments, it's gonna be fun to find out!
BTW, thanks Alfred for letting me drive that M18. The talk that night opened the idea of a new car to my wife!! (It'll probably be the last one for a loooong time!!)