Took the Fenix 5S for a test run. Naturally, I didn't have the time to configure it the way I wanted it so I was messing with the data fields to the last minute, it defaulted to smart sampling + normal GPS (hence the wobbly route), and to add more color to my run, I had a serious allergic reaction to some type of tree pollen towards Bedford. Walked it off, resumed. Happy to have HR data again! Thanks Chris! I promise I'll get around to doing more "structured" runs in a few week