I just dial soft....er, because almost everyone will be in the same boat with traction issues. The exception to that rule will be "that one guy" that folks see running 7.0-7.50 in the 1/8 with a tubbed car. Everyone always wonders why "that guy" spent the money to tub his car if he was only going to run 7.0-7.50......Conditions like that are why, and he will probably win the race if he has any skill....and yes, there is "that guy" with that exact setup at my track who excels at winning in hot greasy conditions.