chakster.... who told you that? ..just saw VandenHul...... this is not a hard and fast rule. Maybe for VdH, but not as a universal rule. Also, in regard to the arm used.... If the bearing is at a different angle than is the headshell/cartridge, the azimuth is constantly in flux ...changing with the rise and fall of the warp...not good
"Straight" talk
I can't emphasize enough about the importance of proper azimuth. When even a bit off, the result is smearing of soundstage, emphasis of one channel or the other, blurring of lyrics, loss or air around the instruments...etc. If Paul Simon (et al) doesn't sing in his own space exactly between your speakers....better get a Foz.

