davidl and/or CypressMidWest - I have a roll center question for you REV.2 guys. I don't run a REV.2 but I am curious how your setup changes effect your cars. Do you run the stock roll center currently? If not, what thickness of shims do you run under the pivot balls? How small of a shim thickness (roll center height) change can you notice on handling on the track. For example, is .005" or .030" a huge change? I really have no idea how sensative your chassis is to that change. Do you change the roll center for lower, "weekly racing traction" and higher, "big race traction." Also, how do you feel the roll center modifications change the handling in sweeping turns and 180's? How much do you change the rest of you setup (ie side springs, dampening, etc) to adjust to the roll center changes? I guess that turned out to be more then one question...