I finally got to try the new Pirelli TD tire and I'm thoroughly impressed. I've turned a ton of laps on the Q3 and more recently the Q4s. After trying the TD's this past weekend at Roebling on our two-up bike (FZ1), I could not believe the grip/feel of these tires. If I'm not racing, the TDs are going on my bike! Plus, you'll have a Pirelli vendor at N2 events...
Nate Kern tried out the TDs this weekend at Roebling and was clicking off 1:15s on these tires. Used a warmer on the rear, front warmer had an issue. After a few laps, he got into the 15's. Tires are crazy good. The Q4 is outstanding, but I'd say the TDs are a slight cut above the Q4.
This is what good product development and competition brings to the market. Love it.