Awesome improvements! Can you comment on the tuning of the optical path? Have you replaced the lenses?
Can you comment on the resolution the birdcage is printed in? Is this 25 microns? Will the improvements of the optical path even lower the proposed resolution of 25 microns?

Regarding the grey resin: First of all great job to offer this choice. Can you confirm that all colours have the same physical and haptical properties?