I finally got out on my new Gen III's. Did about 300 miles this weekend. They track very straight, but get a little twitchy on very hard stuff. Even with 4" carbides they rail through the corners. Sometimes if not paying attention they will almost spit you off the sled. Haven't gotten in any deep stuff yet to see hoe they handle that. I have them on a 2009 Arctic Cat Z1 non turbo.