i'm getting issues when trying to use my 810 with Stages Power Meter (which has cadence built in) and new Garmin Speed sensor.
sometimes it'll work, but 9 out of 10 times, if one is detected on the 810 for my specific bike profile, the other won't detect.
is there any way to set the 810 to detect ONLY the speed sensor? never had an issue running this setup using the old GSC10... :(