Yeah, the new track that I ran at last night is mandating Paragon. I used Jack, my usual, for the first round and the car was perfect. Then, after the owner told me about the Paragon mandate, I borrowed some from another racer for the 2nd round and that's when the looseness started. So maybe it was just that my tires didn't like having both Jack and Paragon on them or something crazy like that. Oh, and I also chunked both rear tires during that run, for no apparent reason...