You are right. With the new cua.e you provided, this matches V19 for all of the tests I could think of. I apparently stumbled across the line selection converting to column (down,down,left) and don't apparently do that on a normal basis (whatever is ingrained into my fingers is working). After testing it out several times, its only the down,down,left that does something different than what I would expect (selects two columns). Down,down,right results in only one column selected. Since I haven't noticed this before, I'm sure I don't normally do the down,down,left movement.
I'd call this working the same as V19 good enough for me. Thanks!