As most of my posts are from a racing point what I'm going to say may or may not be of any relevance BUT the FTX punisher is growing very quickly in popularity over the MCD because A, cost about half the price of an MCD, B, out of the box they go very well, C, with a few inexpensive mods like the wider arms off the monster truck you can widen the "foot print" making the car even more stable and then you can use the new GRP wheels/tyres that work very well.
Most important of all is you get excelent service from Nige at Freeprawn racing, on the net, over the phone and trackside.