rcpilet
I'm not saying your wrong. I'm just saying, that if you make sure everything is equal. All servos and linkages are the same distances--you won't have problems.
yes but thats not possible in many cases, ie artf. Your post was very "you must" do etc etc
to stress again the impotant bit is to get the servo horn at 90 deg to the push rod and contro horns equal distancefrom the hinge line.