+1 I'm interested in hearing more about RB. You don't hear much about them but I have had a few discussions with a couple of people here and I know I'm making a good choice going with an S5 next season. It would be nice to hear some more comments on RB and what to expect - pros and cons on them and tips for them

There was only one RB at our track last year - I think a C6BB. Of course that one is a monster. He could keep pace with the fastest 1/8 brushless easy. But the thing ran nice and cool and would sit and idle all day.