My 800 is still sufficient for me but over time I have used all bike profiles. I have a new bike and also need to install a Bluetooth speed sensor on an older bike (via Ant+ to garmin and to use Bluetooth to trial Zwift. 800 does not support Bluetooth) . Can I overwrite a bike profile (or delete, if so how) by just trying to pair? I have already tried to pair the new Bluetooth sensor via ant+ to garmin on a previously gcs10 paired bike profile but I don’t know whether it’s possible as the profile is already used or whether I am encountering all the usual pairing issues which are driving me spare!