I have a 935 and alternate two pairs of shoes for my runs. Each pair was bought at the same time and has roughly the same mileage on them. I have an ANT+ footpod dedicated to each pair of shoes. I.E. each pair has its own footpod and that pod never leaves that pair.
Over the last few months, I've begun to suspect that the something is off between the two - sometimes I feel as if the indicated pace is higher or lower than my body is detecting. Both devices are set, in the watch, to report speed always. I dug deeper and examined the calibration factor, and indeed the actual calibration number is different between the two. I have each of them set in the 935 to auto calibrate.
Anyone else seen this before? I would think that the calibration factor is relevant to my stride and not manufacturing or hardware difference between two identical devices....i.e. I would expect each pod, if properly calibrated, to have the same exact #. Is this a bad assumption?
I also can't seem to find a way to force calibrate with the 935 anymore - i thought that used to be an option but the only available option is auto calibrate.