Good idea.
Getting everyone with a transponder certainly helps to "include" them in the races and make them feel a bit more of the action i think.
Not sure if they would be all happy to fork out £70 for a transponder now though, but as you say, bulk orders may be the way to go.
Really looking forward to it - fitting roll bars to the Cat and changing a bit of the setup from last time - the track could be a bit dustier with all this damn sunshine! hehehe
