[swamp2]

My OEM PS2s are currently at 1/8th inch tread depth (one is actually down to just above the wear bar to 1/16th inch). In day to day driving when getting a bit aggressive I feel the rear tires have less traction than when they had more tread depth. However, I also know most track or race tires have very little to no (slicks) tread depth. Does anyone know about the variation of ultimate grip with tread depth? I am heading to a track day soon and do not want to replace my tires before my new wheels come. Please refrain from rumors and speculation, I am looking for a real solid answer here. Thanks.