How is this any more relevant to a harley transmission than your explanation on why some people have difficulty driving class 8 trucks? You seem to have a tough time staying on topic.

 

Perhaps I have owned a fleet of trucks and better understand what is going on.
Relevancy is the occurrence where the slot is acceptable to the apparatus is fitting in it.
Your cognitive apparatus just does not fit the line of thought here.
You definitely can shift up in a HD as the RpM is dropping off
Shifting dwn,- there is no neutral to give the main shaft a whirl to match RPM and road speed. Savvy?
So you hope you get right between the click (detents)
You seem to have a bone to pick.
You have no clue what I am talking about so you want to be rather abrasive here.
knock yourself out.

 

I'll just leave this here

https://bakerdrivetrain.com/