Riff raff - one of the reasons that debates about blade motion get so heated here is that people tend to argue from one standpoint based on a design they are familiar with - some are used to gimbal (Bell) style 2 bladed teetering designs, others fly the R22 combined teeter and coning hinges in the head - then you get onto fully articulated heads and semi-rigid rotors.
And don't forget Hooke's joint effect when you are looking at coning and apparent tilting of the disc
