I put about 170 miles on today, and I'm pretty happy with these tires. Avon RoadRider AM-26, bias-ply, basic tire. Running the B4 stock sizes of 110/70R17 150/70R17. Very smooth, confident in high-speed sweepers. Didn't get much chance to push 'em through the real twisties, but they seem like they'll perform for me. I kept thinking I needed to back off, and then was disappointed that I'd gone through the turn too slow. Probably smart, though, as I wasn't familiar with the road and was leading for the last 60 miles or so.
Dang, the steep side profile of the 70's is gonna make it hard to eat up the chicken strips...