Hi all, Could someone please measure (and share) as accurately as possible the distance between the very first (long slot) and very last (long slot) on each side (83 and 59 slots) of Kevin Ryan's proportional string spacing rule as sold by StewMac or Amplified Parts ? Obviously the measurement would be aiming for either center to center of the slots OR same edge of the 2 slots. 1 mm (plus eyeballing for half a mm) or the equivalent in inches is sufficient measurement resolution. These 2 values should be adequate enough so they can be rounded to the nearest mathematically possible value and subsequently answer any remaining questions regarding this common tool exactly (like how much slots overlap on each side or build a lookup-table to associate slot-number to corresponding values for use in calculators and sims, etc.). Thank you very much in advance!!