Extend Next/ Previous edit to play head

I'm a long-time avid editor looking trying to add Premiere to my repertoire and mostly I'm finding it an amazing tool... but having a few pretty big hangups.  One of the toughest, for me, is the "extend next / previous edit to playhead" functionality.  I'll try to explain in an example:

I have a timeline with clip A and clip B.  I want to, extend the tail of clip A until it completely replaces clip B.  I realize I can use the rolling edit tool and drag clip A right until I reach the end of clip B... but for me, this is clunky and slow.

In Avid, I would simply mark an out and hit extend and Clip A would roll until the outpoint.

I found the keyboard shortcut in Premiere "extend next edit to playhead".  WooHOoo, I thought.

It does work ok if I want clip A to write over clip B somewhere in the middle of the clip, but often I want to extend clip A until it completely replaces clip B

But here's where it goes wrong for me.

1) [using keyboard shortcuts] I mark in/out for clip B.  Then I "Go to out"

2) I hit extend previous edit to playhead.

... and clip A rolls over clip B... except for the last frame.  Nooooooooo.  It leaves that last frame there.

So, I tried instead of navigating the playhead to the outpoint of clip B, using "go to next edit" instead.

But now, "extend to next edit" will not engage at all.

Am I just out of luck and Premiere just doesn't work like this, or is there some sort of setting I need to adjust?

I'd be grateful for any ideas.  Thanks!