In the first post of this interesting thread Jaymen mentions that the Bonner digimite servo used analog voltage feedback which gave the usual analog servo problems of slow speed and low torque just off the commanded position. As I mentioned earlier in this thread I had an F&M Digital 5 back in the 1960s. My Digital 5 was one supplied with Digimite servos, were the electronics in these the same as those shipped with Bonner systems or did Frank Hoover use his own? The servos were certainly slow as I recall.