heedm,
Got it, Thanks.
PS. Don't tell Lu, but Frank Robinson used the 'G' word when he said;
"an aerodynamic moment on the rotor disc is required to overcome the gyroscopic inertia of the rotor." 
Lu,
Help! Forget the math. Just reread Chuck Beaty's conclusions. You will find that he is somewhat in agreement with you.
I believe that most tail rotors have a delta-3 of 45-degrees. This means that any flapping is
instantly pulled out. No 90-degrees. No discernible delay. No sh1t.