RE: I Killed it !!!!
why do you think 3 wire servos replaced 4 wire servos back in 1972?it was to allow you to land if a cell went bad prior to that with the 4 wire servo you had no chance at all.that bit of history is what I was refering to when I made my statement.so unless radio design went backward at some point with out informing the public that breakthrough should have been maintained.