Thanks for all the advice. I'm unlikely to go with a rack-mount for the tail light at this point since I have the fender mount already and am planning to run the bike with fenders most of the time. I'm not a long time fender user though, so like the ability to have them on and off as easily as possible.

Any reason to distrust any of the advice here?: https://janheine.wordpress.com/2012/...generator-hub/

The one qualification to the above is that I have a Shutter, not a Son, hub so will be making a different connection at the hub end: Shutter install