Good idea. I have hard ganged dual servos on my Airworld Hawk stabs. and for set up I put an ammeter, Hangar 9 , in EACH servo cable. With one servo disconnected I set the lead or Master servo for travel required. I then match the second servo as close as possible to match the leaders travel. I then hard connect the second servo. I then adjust the center and end points of servo 2 so that BOTH meter readings are identical and at their lowest value, ,ie not fighting each other. The currents are then checked and adjusted if neccessary at intermediate points to ensure exact matchings throughout travel.

It was dead easy with the Weatroncs servo curve adjustments, 4096 0points IIRC, so should be no problem with Core.

Another current reduction techniqueI have found useful is to spray all moving parts of the control circuit with silicone spray as used on plastic curtain rails, results can be quite amazing and costs nothing.

I have heard of a couple of Airworld Hawks being lost due stab. failure, I am fairly sure this was due to servo failure due mismatch resulting in servo burnout and lockup.

Perhaps another advantage of using dual ammeters and a radio capable of making tiny sdjustments is to adjust travel points of one servo until the current just starts to rise a tiny amount. This compensates for any gear lash and reduces the chance of control surface flutter developing.

Mine are still going strong after 12 years, touch wood !

Anyway, back to my morning coffee !