Actually, my OP "flaky behavior" seems to be more about variable delay times until the TT pops up:
- When moving mouse from below onto a Custom Toolbar button, the TT effectively appears immediately (< 1 second delay). Very helpful rapid feedback as is.
- When moving mouse from upper left menu area (or passing over the Clock button), the Custom Toolbar TT usually appears after about a 3 second "long" delay.
- When moving mouse slowly between Custom Toolbar buttons, some exhibit rapid response and some the "long" response.
- The "long" delay also applies to TTs for the upper left fly-down menu buttons.
So the confusion (or is it an inconsistent undocumented feature?) really arises because of the
variable delay times. If the 3 second "long" delays could be reduced to 1-2 seconds, and applied consistently, I'd be OK with the variable delay action (which mitigates excessive flashing TTs).
Request: Retain immediate response from below (first case). Apply long delays consistently for other mouse paths. Consider making the long delay time settable, next to
Options > Tree & View > List > Show tooltips.
Note: I've now positioned the Clock button rightmost, which helps some.
10/1/2023 Overwrite multiple edits to get this right.