I got the new magnet-less speed and cadence sensors and used them for the first time today. I noticed this morning that it took a long time to wake up the cadence sensor while the speed sensor woke up within a few seconds. This morning I had to spin the pedals 20-30x to get my cadence sensor to register.
Leaving work today the cadence sensor was much worse. I spun my pedals forward and backwards over 100x and it would not wake up. I finally gave up and assumed I'd have no cadence info for the ride home and started riding. About 10 seconds into my ride, the cadence sensor finally woke up.
Is anyone having similar issues or have any advice on how to wake up this sensor more quickly?