In V1 I noticed that the data source for "flights climbed" was only the iPhone and not the watch. I was just about to ask why the watch didn't count flights of stairs when I noticed in V1.01 there are now 2 data sources. The watch is the primary source and the iPhone the secondary source. However, if you view all data you will see that the watch has not detected a single flight of stairs. Not one. So now you have a situation where 2 people wearing watches and climbing the same flight of stairs. The person with their iPhone in their pocket will correctly records the data and the person who's iPhone is stuck on their desk will record 0 flights of stairs climed.