Actually
Dan, with regards to 4WD..
you say you would run a 5.5R 99% of the time in 4WD (as 99% of everyone else has also said) but what about it low grip conditions?
5.5L, 6.5L or 6.5R?
And finally, you say that you race indoors in the Winter (good choice!) but what motor would you use indoors for a 25m long track??
Thanks