Originally Posted by
nycphotography
My only real complaint with the 520 so far (had it a week replacing my old 705) is that I have to tell it to connect to one power meter or another rather than it just figure out which one is available.
Something doesn't sound right there. The newer units, including the 520, maintain a pool of devices and will pair with whatever devices are on your bike. Unless you're somehow turning on two powermeters at the same time the 520 should just pair up with the first one it hears. I have two bikes with powermeters and speed/cadence sensors and just get on and ride. I don't select specific devices for a particular bike.