Welcome, Ken! Funny, that's my name too! I'm rather new here as well, and I'm just getting into mx this year. My 14 year old son raced last year on a YZ80, but he's moving up to a KX250F this year, while my younger (12) son will be taking over the YZ80. I'm planning on racing Sr. C on my CR250, but unfortunately the Army has called me up so the season will most likely be cut short.
Yeah, you are lucky to have the Edge facility close by. I haven't been there yet (I live near Rochester), but I'd like to go. I'd like to plan a time to rent the track for the day (or half day, whatever), but it ain't cheap. I can get a few other people to go and help split the cost - let me know if you might be interested in that - it'd be like $50-75 a person or so, depending on how many people. PM me if interested.
I've never raced mx before, and I haven't really ridden any dirtbikes since I was 17 (I'm 35 now) - but I've been on quads the past few years, so I think I'll be ok (ran my Banshee on the track a few times over the past 2 years - what a beast! It beat the crap outta me!!!). It's probably like riding a bicycle - it all comes back to ya....... ;)