Thats funny, I just finished my Buttonwillows track day on the Q2's and before that I was using the 003's, and my lap times were about the exact same. Both are really good tires, what I noticed between the two was that the Q2s felt better in fast sweepers, but I could break the rear wheel traction out easier on them compared to the 003s, and when they did break traction, they would "slide" quicker than the 003s, where the 003s seemed more predictable. I would use either, depending on which I could get cheaper on sale.
Aloha Alex
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