Hey yomike46, Welcome to Sorba and the crazy world of MTN here in GA
You say you ride at Tribble Mill, have you also tried out Harbins, which is just a few miles down the road? Great place, awesome trails, and more on the way.
My name is Joe, one of the board members for GATR http://www.sorbagatr.org/
We are a chapter of SORBA that maintains the trails in Gwinnett. Go check out our website and our forum here on this site for info on our many up coming group rides for 2010, would be great if you can come out and ride with us. We are open to all riders from newbs to the die hard racers.