Thanks John. 666 was in good shape with really good pavement for the first 7 miles or so until there's a sign directing traffic to 66, and I think most traffic goes that way. After that turnoff the road is narrower and less maintained, but I thought it was OK. I was going a little slower due to the wet conditions, but didn't bounce around too much. The shortcut from 666 to Tionesta was pretty beat up, but that's more a local road.
Great roads up there for an S bike.