"you should feel something from day one, I would think." Agreed. to a point.
would the rotor instantly warp when mated to an off plane hub? Being as it bolts towards the center, perhaps the outer edges stay rigid/in plane until the rotor adjusts as it undergoes heat cycles repeatedly over time. Thus not upon installation but only with the passage of time will the minuscule hub imperfections warp the rotor. Deflection increase with distance, distance from the center which may not be too far out to start with. Just guessing is all. as this has not been brought up, and a hub's mating surface has not been examined for flatness and a cause for the rash of warped rotors has yet to be sorted out.
