Steve.............. I've nearly got you up to date. Just need to get rid of that box with the two prongs sticking out of it!
Dirt........... Any progress with yours? I've been busy building a XV-01 and getting my TT-01R sorted so haven't looked in to your CS situation.
Hot Wheels............ I've found the stock tyres the best on tarmac. Tried T-drifts and Pro compound from racing punk and both weren't that good on my setup but that's not to say the wont work for others.