Same for me...1 class is enough...especially when your helping to run the meeting as well!!!
If there were more heats running I'd run 2 classes...so come the summer when the turnouts are bigger, especially if onroad takes off, I probably will run both more often than not.
The jump between 2wd and 4wd is ok once you get used to it, it only takes a lap or two in warm up to tune in. I do love 4wd myself...especially in the winter...far less sensitive to the damp/cold...making for better racing!
