Don’t current Kensington trackballs have this layout as well?
Not quite, with the thumb buttons like the Trackball Explorer had. Closest I can find is the DEFT Pro https://elecomusa.com/products/deft-pro-trackball
If crypto keeps going up there's a chance my 3k investment in it eclipses my 40yr 401k so I'm hoping for that....
"..the user suggests using XYZ to move forward, but that would be rather inefficient, perhaps the user is not totally aware of the characteristics of XYZ. We should suggest moving forward with ABC and explain why it is the better choice..."