Okay Thanks a lot guys. Was just looking at a couple RC4's. I keep seeing that there is a two wire one and a three wire? What's the difference and what would you guys recommended? Thanks again! I'm so pumped to get racing again.

Yeah I'd like to know the classes for this season, too. I've been away for a few years but finally I'm coming back. Planning to run 1/8 nitro buggy, 1/10 short course and 1/10 buggy. Also does anyone know what transponders work with the system in Proctor? I'd like to get at least one or two. Thanks!