No...
I did some fishing and found that there will probably be some rules changes to the BSP class ( stock chinese clone Honda engines in Kart racing ) allowing the ARC billet alumnum flywheels.
I still feel that Mike making some good iron ones would be more in keeping with the original intent but ARC is selling CNC Billets for 100 dollars and I don;t think Mike could compete with that considering the amount of machining required. Too bad though I'd like to see him tossed a bone like that had it been a viable product.