I thought (perhaps erroneously) that it's possible to configure the GPS setting ("GPS", "GPS+GLONASS" or "Off") for each individual Activity Profile; and that the Edge 520 would automatically start up in that profile with the GPS as per the setting.
Apparently not. I have an Activity Profile set up called "Spinning" for indoor cycling, where I have the GPS set to "Off". However, when the 520 starts up in this profile, it still searches for then locks onto the GPS sats. It's then necessary to manually turn off the GPS each time (if you forget to do this, then you get one of those great chicken-with-its-head-cut-off GPS tracks for the indoor session).
Am I missing something here?