1900 AE Heavy Wear Marks?

[sheepherder]

The toggle does not hit the ramp at the bottom; it hits 1/8" up the ramp...The wear mark isn't straight across because the toggle knob edges are not parallel; the knobs are tapered...Like a truncated triangle (as seen from the top)...It tapers .004" over a .045" surface (the part of the toggle that hits the ramp)...There's no visible mushrooming, but my verniers tell me the ramp is .004"/.005" thicker where the impact marks are than below them, where there has been no impact...

Edit: The duckbill of the rear toggle does not show any undue wear or 'spread'...