I ran them at last weeks NE regional Mark...
Used tubby inserts, very grippy - had to dial it out on the front of the car.
When it comes to wear the grip does not drop off as it can on yellow minis. How many runs... Reckon you would get a meeting out of them with plenty left over, depends on how heavy you are with the trigger tho
Found they work very well at Batley too between the grass & astro. Good all round tyre imo.