Most "here" that have 18's have gone to 19's or 20's. I had 18's and now on 19's. Check out my journal. Between 19' and 20's is up to you. I prefer 19's due to lowering, tire sizes, and weight. Plus to me there more particul.
By the way I see your in GA. Check out this link for a big meet in the next couple weeks. Unless you already have.
SouthEast MEGA Gathering/Meeting. March 19th, 2011!