multiband causes problems with all activities as I see it. I complained in another thread that it adds more kilometers to me during running and therefore the pace is different.
my graps looks error free too. Even the line goes exactly where I run. no deviations. the distance just doesn't fit. however, I assume that Garmin has some bad algorithm.
today I found out that I had distance and pace turned on in the HRM PRO sensor, so my chest belt was adding kilometers to my statistics. after turning it off, it all works for me
