Did some searching on the forum and haven't found anything fully covering the topic. Those of you that use a heart rate monitor, what do you like about it? Do you think it helps? I'm curious about getting one myself to help keep swings in the maffetone range, and maybe more applicable for mountain biking, but also thinking I can get away with the talk test and this is just a new shiny piece of equipment that isn't really necessary. Thanks for the input!