I have a 205/60/16 Goodyear Trippletread Assurance 80,000 mile tire... smallest tire that I could find that would fit.... hell, it's the only size that I could find that would fit. It cost around $125. I think some of the Valk riders are using the same tire and same size.
Handles fine in the twisties. I just got back from the N. GA Mountains, and it did great w/ a passenger in the twisties also. (1st time I've been in twisties w/ a passenger and a car tire) I had the bike layed over pretty far at one point and never felt like I was going to lose traction.
Alot better traction accelerating and breaking.
I have a good picture of myself on the tail of the dragon, and as Tdragger said, even though it looks like there's alot of tire off the ground, there is still more on the ground than any motorcycle tire I've seen.
I doubt I would ever go back to a motorcycle tire on this bike.