Still waiting...
All blocs have gotten the tire proposal and the unanimous response is that everyone wants some sort of premount. No one wants a repeat of the tire gluing problems in South Africa and Minnreg
So far CS27GL and LRP(Pit) 30R premounts have been made available to us. Sorex 36R tires with Sorex inserts and open rims are the non mounted alternative.
The problem is that IFMAR has no rules regarding the use of premounted tires. We are in contact with IFMAR via phone calls and email on a weekly basis trying to get this sorted out ASAP.
The Worlds Warm Up will be run on TakeOff CS27GL's because that was the Track Owners first choice. They are the tires the local racers prefer for the surface and weahter conditions. These tires are also currently the best selling racing tire in the US and European markets so they are familiar to racers world wide.