Best tire for kart dirt drags?

#1
Gathering opinions on tire options. We run a 233' loose dirt drag strip (think Street Outlaws for karts in the dirt). Most use old race karts with ATV tires.

For the application I use 13x5-6 Carlisle Xtrac tires, and they grip alright.

Would swapping to a Hoosier or Burris grooved 12x8-6 increase or decrease traction? Wider contact patch but much less tread.

https://m.youtube.com/watch?v=xf8048O66NE
 
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