Finally got my Vector pedals to work properly today.

No major issues with physical installation (location, washers, clearances) except a note to be careful with the grease! It was noted above by someone else that they were going to be extra careful given that the torque would be higher than we would normally do, so after a good clean of the crank I greased up the threads well and put the pedals on. As the threads spin on, the excess grease is squeezed out - normally no issue and easy to wipe off. However, with the Vector pedals the end of the spindle is open and full of the electrical contacts, so I managed to fill that with a bunch of the blueish/green Park Tools grease! I had to clean it all with a couple of q-tips!


Riding:

Initially I had a very biased left-right balance that wasn't believable. Checked torque on pedals.

Then I had an even balance for half a ride, then I lost the left pedal. Restarted Edge 500 and did calibration, but upon return the pedal was registering but the imbalance was also back. Loosened and re-torqued both pedals and re ran calibration. Power total about half what I'd expect!

Next ride saw the cadence stop (using the GSC-10 sensor) and the power stop with it. When cadence did come on, so did power. New battery in cadence sensor.

Cadence still coming and going. Loosened and re-torqued both pedals, cleaned pod plug contacts and also the socket inside the end of the pedal shaft (alcohol wipe, q-tip), removed cadence sensor and moved closer to bottom bracket so that I could move crank magnet further from pedal (possible interference?), re-installed software on Edge 500, pushed reset on GSC-10 when starting ride and calibrating everything.

Success!
Realistic power and left-right balance. No odd stopping of cadence and power.


Now to devise a training program to get the most of this so I get fitter and lighter!