I've been on an FM binging spree - think I've gone through 40+ in the past month and a half or so - and this one is probably in my top 5.
Due to a couple of issues I had to restart the mission twice: One pretty far in where my cat hit the restart mission button without me having saved (aka: my fault) and one where I got stuck in geometry, and I didn't even mind!
At some point I plan on going more in detail and giving reviews to several of the missions I've played - so I'll keep it brief for now.
This was a very pleasant surprise - as I had not gotten to playing any of your maps yet before this one. We're all very fortunate this is how you are spending your retirement. I'll be playing through your other two next!
Looking forward to seeing more of your work in the future!