LOL No, I used a Marshall HD monitor. No small 3D monitor yet. We did, however, have a 50 inch LCD 3D monitor on set. You viewed it with glasses and could see 'real time' what the 3D image looked like.
None of the camera controls used Prestons. It was all hard wired. Focus, Zoom, Iris, Mirror, IO, and convergence. All to the 1st AC and Convergence puller using the Cameron/Pace system called CAMNET. When using the Steadicam, we reduced the cable bundle as much as possible but it was still a little cumbersome. A lot of intelligent cable management was required. The system actually worked great!