Nice. I've run my 511 at two meets now and agree that the box setup is pretty damn good. Until now I've been running a b44 body and tray which has plenty of room for electrics but I'm running 4200mah lipos which aren't too big and I solder my corallys to be L shaped so clearance at the back isn't an issue - I have a 511 body ready to paint so I'll see how it goes, I doubt it will be a problem though.
So far I've broken the following parts.
1. Servo horn: which I replaced with a square RC alloy unit from the 416 which I had in my kit - the tamiya horns tend to get saggy after a while and wont re-centre, on the 416 I went to a kimbrough one and probably will when the 511 goes the same way
2. Diff pulley: Something must have found its way into the belt and chipped the edges off the belt pulley along a couple of the teeth. It lasted the rest of the meet, but is in the bin now
3. Front arm: pretty standard
I'm looking forward to running the car a little more and maybe changing a thing or two with the setup once my driving comes up to the same level as the car