Fastrax Koarse Kings... trim spikes off and Dremel smooth rows from outside to in depending on grip levels.
As a starter i would definitely take the outside row off both front and back before even trying them
I ran Fastrax Bullseyes in the wet as Koarse Kings are a bit hard.
The kit tyres won't last too long on grippy astro as they polish and go hard.
I was only running -2 deg maximum camber on SCTE so you must have lots of grip!