Those are J-Hawgs. I like them so far. Good traction on pavement and dusty, hard packed dirt surfaces (the two types of terrain I've ran them on so far). I have the soft compound set. The stock foam inserts are VERY soft and don't provide any support, so I installed a set of Trinity 3 piece low-roll foams. They support the sidewalls very well and the tires seem like they are air filled. I'll be bashing on some good dirt hills tomorrow so I'll let you know how well they hook up.
Great...I saw a set at my LHS and just hadn't heard anything on them. They look pretty cool, and I'd imagine with that tread depth and pattern they get pretty good traction in the offroad environment. I'll be interested in your assessment of them.