Apologize in advance for the diversion, but am a bit surprised that with all the " commotion " regarding coning, it hasn't been mentioned that the S-70 rotor head, since initial design, has " pre-coning " built into the head, which of course would go to support the premise advanced in this thread, right?
Wrong: the pre-coning was incorporated for a single non-related reason: to reduce the steady state amount of flapping required of the elastomeric bearings, thereby allowing for the goals set for their component replacement time. Same goes for the pre-lag.