Three of us now have the Yokomo Drift tires. They are perfect, IMO.
Since tires are pretty much what determines the performance of your car in this class (and driver skill) I think we will eventually have to require this tire.
Maybe MARCCA could buy some sets and rent them to people who just show up and want to try the drift class.
The athletic tape work very well, but I think we should limit it's use to newbies.