Btw, I don't know how well the suction cup works because I haven't used it. To hear the guys tell it, it works fine on the street. But tech inspection won't let you on the track with a suction mounted camera.
Some guys suction cup a camera on their track bike after passing tech, before going out, and some guys get away with it. But if the track marshal or corner workers spot it, you'll be black flagged.