Ok, as I run through these charts, you can now see that we got a beautiful 1-2-3 out of it as well.
Bar #1 makes new High.
Bar #2 tests and fails to make a new High.
Entry as price drops back across Bar #2's Open Level (red circle).

- S&P500H1asa1-2-3later22ndMay18.png (25.44 KiB) Viewed 2795 times
Now. Something to make note of...
That red-circled entry is not quite a new H1 Higher Open, so a true
HOLO entry is still based off of the previous set-up off of the H1 Open that
is the highest, the one posted above previously.
However, if I was in this 1-2-3 trade and had taken my profit (using whatever mm I'm using) on the first big push down, then I would not hesitate to re-enter as price kicked back all the way to the entry level and down again.
You're taking additional risk and it's not set in the method but it is an option for those so inclined.