Worked on Single arms / releases for 3 weeks after Live class: Progress / Comments Please

Hi Tyler, Per the Live session's learning / diagnostics, I spent the time since just working on releases. Would like feedback on whether you see this as having made progress. My observation is that left and right arm coordination are better, but not perfect. Single arm can now make solid contact from time to time, better with right than left. I've been working on extending through impact and keeping the spine twisted through the downswing ballroom dance drill. Contact on the 9-3 has changed for sure, and when done right is much more solid that I've ever previously had. I still notice a late wrist flip (is that still a wrist flip?) Still haven't quite gotten it to work on the 10-2 or full swing. When I get into longer backswing positions, it seems like the old release pattern creeps back in. My mental model right now is to keep the spine rotated through the swing and pulling through the butt while the spine stays rotated through impact and imagining the club face staying perpendicular to the swing plane while it's motorcycled. Should the motorcycle wrist motion release after impact or stay that way past impact? Feedback / direction welcome on - on the right path / keep working on it or any new observations or not quite on the right path.