An interesting read Ted.
From the journalist that was on here as "bike-pusher" I believe. Local to me and referenced Tippets Honda, a long time major dealer for them. Now gone same as many bike dealers.
Disagree with his assessment of CB750 handling being "diabolical" and commonly given from people riding smaller bikes generally (although he seems to have been generally riding bikes for magazine testing) so thought there's wider appreciation of type. Wearing Converse All-stars to ride bikes is not really showing good outlook though, is it.
Poor, worn square rear tyres will make them feel cumbersome. But good profile and ability to manhandle the mass makes for a very different outlook, in my experience.
The carbs, PD, likely to need very detailed cleaning to get them effectively running on target, not just up the sizes on mains

running lean likey to have helped conserve the camshaft wear as low excess fuel doesn't cause dilution of oil to make that happen.