Tire selection

I'm going to race the crt.5 this season.

We run on green outdoor carpet (from a distance it looks like gras). What tires would you suggest ?

When we run our Asso B4 we use Schumacher mini pins in the rear and stagger ribs in the front.

Using the standard crt tires, I have too much grip at the front. I was thinking about the mini pins in the rear and a losi 8 rib in the front ?

Suggestions are welcome.