My biggest issue is that even if the bike, properly positioned, does trigger the sensor, there is no instant feeback. Sometime 2-3min elapses before the light changes after a car triggers them. I've tried putting the bike over, waiting, waiting for light, nothing. Other times I've put the bike in position and the light does change. At least with pushing the x-walk button I know the trigger has been made (its still a 2-3min wait, but with guaranteed results)

Al