Of all I wish for, HR monitoring is near the bottom of the list.
Agreed. It's so far down my list it's not even on the list.
1. It adds variability to the process that destroys dive planning. If you are exerting on a dive, call the dive early or pad last stops.
2. Its something else to go wrong
3. Dive computers should be focused on what they NEED to do without bringing gimicks or potential for unknown impacts to algorithms. KISS.
By adding a HRM it would remove one of the things that make shearwater such good products. They are predictable, understood and reliable.
Shearwaters moto is : Powerful, Simple, Reliable.
HRM is none of those
My 2c, HRM should be in a different thread.