We all showed up for a ride a couple of months ago with a new and different drivetrain.
H brought the homemade singlespeed:
jsn with the Nexus 8 speed:
Eric with the 1 x 5 (custom stack, friction shifter):
Me with 1 x 9:
After a couple of months of trial use, one bike stayed the same, one got upgraded, one converted (back) to the singlespeed, and one was never ridden again...