Hey everyone, thanks for all the nice comments.
I must have played this song nearly a thousand times over the past month or so.
Although I know I still have to work at it a bunch more, I just had to finally take a break from it, upload a video of it and start on something new.
That seems to happen to me every time. Oh well.
If anybody wants to work on a tongue twister equivalent for the right hand, this is the song for you.
It's a really good lesson forcing one to learn to play essentially two different things on each hand.
I found section 4 to be incredibly difficult. It feels to me like doing 3 different things at once.
The right thumb, the right fingers and the left hand are all doing different things. Ugh.

Maybe I get through that section once every 10 attempts.
Dean, as you noticed, I mostly didn't (couldn't) follow Neil's suggestion for using the left thumb on F.
It's just too much of a stretch for me.
So, I kept on trying various weird variants and hit on one that works for me ... mostly.
I did use my thumb on one part in section 1 because I couldn't get to any other fingering quick enough.
Anyway, it's a fun and seriously challenging song.
Hopefully Neil will be uploading a new 9er soon!
-Tom