What triggers the Left ball gate to open. In coil test mode the coil works fine and opens and closes the gate. Long opto works fine. I had a BSD years ago but forget what triggers the left gate to open to let the ball in. Do both the left and right gates open at same time and stay open till either ball goes into left gate pocket or is knocked off the long opto then both gates closed? I can't remember and I am sure someone in here knows off the the top of their head what opens that gate.