Bonjour Dennis,
I can imagine the time you need to make these little elements which have to be accurate. I spend hours where I would need minutes in my mind to do anything as soon as it it concerns my passion

Never mind, perhaps this bloody virus gives you more time to work on your CD10.
Besides this, I had a little question : have you changed the size of the intake and exhaust openings in the HP cylinder since it is smaller in diameter than the original ?