Well, you would think by the pattern the tire that would be most similiar to the crimefighters would be the Mambas, but I always end up running the Vipers. The crimefighters and bowties are the tire of choice at my local track, but lately I have been running the Vipers. This past weekend, I switched between the Vipers and Crimefighters and I was about 1 to 1.5 seconds faster per lap with the Vipers. The Mambas hook up good when the track is loamy, but as soon as the track transitions to loamy/blue groove I switch to the Vipers. Not that the Vipers are blue groove tires, but they do well when the track is a combination of loamy and blue groove. I let another driver use my car and he said the tires were hooking up much better then his car with Bowties.