We (Bikeboard.at) are just testing the Vector 3 and they work really fine. We did also some comparisons with other powermeters and with the Cyclus2 and the Vectors were showing accurate results. But one time, after installing on a different bike (with calibration afterwards), their watt values were too low. So I entered the "menu" on the Edge 520, went straight into "sensors" and "set installation angles". After setting them, the values seemed alright again.
On your homepage you write "Vector 3 and 3S: Install angles are automatically determined and set in the background and are not required to be set by the user."
My questions: Why is the function "Set Install Angles" still available on the Edge? What does happening after activating? And is it better to "set the install angles manually" after each new installation?
Thanks and best regards.