The thing that bothers me the most is having different tires for asphalt and dirt. With the BFG's, if I felt like going to the tar track on a friday night, I could just show up. I they have 2 different tires, thats not going to happen. Im not going to spend $400 on tires to go race once or twice a year.
Maybe thats the grand plan, to keep the dirt guys and asphalt guys seperate, but I dont think thats in the best interest of anyone.
As for monitoring and officiating self grooved tires, the only way I could see this is to, say for example, have a sheet of plastic with an 8X8 square out of it, and count the cuts/grooves/sipes inside the square. Could be measured anywhere on the tire if they had a specific "12 cuts per 8 square inch" rule or something arbitrary like that, but there is no way they could regulate a tread pattern if its up to each individual to groove their own tire. What if you sneeze and one sipe is 2mm off for 3mm on the third groove from the outside? Throw away the tire or risk being DQ'd?
I don't think 600 would put us in a situation like that.
I'm glad they are taking the time to decide what to do, but I was really hoping to get a couple asphalt shows in this year...guess not