New TA/Charting, page-14725

Agreed, not all gaps fill, but they tend to here.
Gap fill $1.15 allowed my last re entry after it had run to low $1.20s.
I was a bit more conservative yesterday at $1.21, in case that gap only partially filled which sometimes happens.
Kept some powder dry for $1.15-$1.17. I expect that to get hit when the PLS quarterly drops, (as it is a proxy for the sector and profits will be down.)

Your understandings are way ahead of mine, but I use a couple basic things that seem to work.
The stock tends to respect fibs, gaps etc and guys like you put a more structured chart framework around that.