MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.
The Ring vent locations and airflow are calculated. It's secondary design funnels waste airflow from hot-end fan.
As for the "Spriya" if we turn it sideways to match Ender 3 or any other Micro-swiss shrouds native fan it blocks the nozzle from head on.
I have an old Semi-Circle cooler with open front here - https://www.thingiverse.com/thing:2897353
Once a printer is setup It is not needed to level often, As long as folks are not violent scraping prints up. Glass bed is perfect for never needing force on hotplate. A set of calipers upside down between gantry arm and hotbed can make leveling simple, fast and accurate.
Hit all 4 corners and the center.