I took the plunge, ordered, and installed the ETAP Red system on the Co-Mo. Also ditched the TRP Spyres in favor of the Red Hydraulic brakes. One ride so far and we love it. I ordered the large capacity cage from Chinook, however, it is on back order for now and using the gearing display on the Garmin allows me to insure we don't go into the "slack" gears.
Thanks for the info, it was a bit pricey, but we'll enjoy every bit of it.