data on TOMTOM Spark watch vs Strava is way off. - Did a century ride this weekend with both the watch and strava/phone turned on. strava gave me 3,102 cal / 1,543 elev. gain, Spark shows 6,125 cal / 7,714 ele. gain. rest of the data are close (time / distance). checked with other riders and the data from Strava matches the rest. 1) how do I adjust/fix the data on the watch. 2) if not, is the watch reliable?