I can't remember but I have a feeling that Focused Events do not allow personal recording equipment.

Possibly because I think they rent video or you can pay for one of the instructors to take a video or something like that, basically they'll lose money if you do your own.

Cheers for the heads up, I am amare a lot of trackdays do this so plan to hide the camera well

Im pretty sure they will let you but you have to have their permission prior to the event.
Anyway, watever happens have fun, i love cadwell!!!