Creating interesting clock, have a few ideas but need advice driving 200+ LEDs.

Crossroads,

Interesting! It's good to know that they can be that reliable.

To avoid issues with inconsistent LEDs I am going to divide the LEDS into groups based upon relative forward voltage. Hopefully that might help avoid bright spots.

By the way, In case anyone is interested I laser-cut some lexan for the project in my universities fabrication lab. See attached. (The burn marks buff out with a bit of rubbing alcohol)