Quote Originally Posted by SadieKate View Post
http://www.motionbased.com/
For instance, all of us on Party Pardee Saturday reported lower than usual elevation gains (probably due to barometric changes). Last night I found 6 downloads from Saturday and another 8 from previous (probably volunteer) rides that reported much higher gains. The numbers looked more in line with my past years' results so I reported the same 4,100' ....

I wondered about that. I just always use what the Polar says, I figure that way the data is always skewed in the same way. I know sometimes it has to register too high.

V.