Checking for Bad Servos and Control Linkages / Push Rods etc...
I highly recommend to check the AMP draw of the combined servo duty current draw and look out for higher than normal AMP draws. This is useful to detect a servo going bad and as in my case a Push Rod with a sleeve getting hung on the wire! All of which has the potential in losing your model (Crash).
I will be using my Watt Meter.