Nice one Doug.
Having been in the building industry for 40 years, I can assure you than trying to 'eyeball' a hand-held ruler over the dead centre of a 4mm diam shaped spindle at the same time as 'eye-balling' a mark on this ruler over an ill-defined tonearm pivot hidden by the tonearm is no more accurate than a generic 2 point alignment card downloaded from the internet.
The Feickert 'locks' in both spindle and tonearm pivot and is attached to an aluminium 'beam' which has NO deflection compared to a wooden, metal or plastic ruler over the same distance.
It seems a little odd to be so adamant about 'thinner' etched lines and parallax error compensation of the mirror backed Wally and Mint protractors whilst at the same time proposing such an inaccurate method of effective length and overhang measurement?
