I have focussed on learning the new camera (going from canon to Nikon is like trying to teach a bogan to speak Japanese) and now that I'm comfortable with it I'll get more use out of the rig.
Must say I have reservations about dangling upwards of $5k worth of camera and lens off a 6m pole attached to a moving car! What's the saying...he who dares wins?
...or he who dares cries when everything smashes on the concrete