At our track the softer tires pick up all of the rubber from the TCs. My club is big with the 5 classes we run we get like a 120-130 entries every friday night. By the time of the second qualie the track has a lot of rubber on it. I tried softer tires and the seem to pick up more track crud than the blacks do. As i said for me and my track LGC seemed to last that extra 1:30 that SXT 3.0 didn't. I never tried soaking the tires with the SXT for longer. I have to wait till the fall to try it.