Interested in what you find after more use. It's telling how Shinko did add some very light groves from the factory. They wanted a new tire to have some lateral grip? While you got used to it's initial feel? The problem I keep reading is when you're running straight & on the gas in loose traction, the tire wants walk sideways. The big paddle has no problem with forward grip, but that large block has no bitting edges to keep it from moving sideways. A somewhat similar tire, the Dunlop D908RR, has some edges to help with this.