I finally managed to find (thanks, DC Rainmaker!) a way to get my basic Garmin watch to display power data from the Stages indoor bikes at the gym I've recently joined, so that I can laugh at the pitiful handful of watts I produce these days. Except they've moved the bikes around this week, and the one I thought was synced to my watch no longer is. Now I have some other random person's power data attached to my last few rides.
The computer I use on the Red Baron is a relatively rare beast, in that it's a non-GPS bike computer that uses proper ANT+ sensors that actually work (small, coin cell powered, basic trip computer functions, easy to read display, you know the sort of thing). In order to conserve power, it stops listening to sensors that haven't produced any data for a few minutes. Fair enough. However, this timeout is cunningly hard-coded to be slightly longer than a really slow traffic light cycle, but slightly shorter than it takes for the BHPC to stop faffing about at the start line and begin a race.
Which wouldn't matter (much) if the key combinations for "reconnect to sensors" and "pair new sensors" weren't easily confused. I've spent a substantial part of more than one race watching someone else's [probably John Lucian, seeing as you're always sucking his wheel - Ed.] speed/cadence data as a result...