I have a brand new HRM-Pro Plus that replaced my dying HRM-Pro. During some of my runs I experience and higher than normal hr that suddenly drops to a normal level.
A few exmaple below.
I am training at different intensity level and I am pretty good at keeping my HR stable so this can only be an artifact come from the strap (or the watch). Any idea of what could I do to try to remove these drops? Never had such drops with my previous band.