Well I would say that the number for the backflips is good, seeing that I like the backflips.
But I don't see why it should be 0 when no one, for example would say that the wheelie count should be at 0. They're both moves for grabbing points, both can roll the truck, both can do damage to the truck. So I don't really think that the backflip should be at 0.
...this debating thing has gone to my head...