re: Glazing Part 1

Great comment on the glazing! It's the one thing that needs to be 100% for a long lifespan without leaks and fogging between the panes.

I was gifted a ton of art glass (for museum artwork) and it also has specific "directionality". The guy showed me how you hold it up to florescent lights in the shop to tell which side is "out". There also i small printing along the edges to specify the same and which side to run the glass cutter along.
Had one piece that I forgot to check and the cutter just made a mess trying to scratch through the side with all the coatings so I'm convinced that in this case, reading instructions has a benefit. 🙄