One thing I forgot to mention is HRV and RHR. In the process of switching to a more endurance, fewer intervals approach, my HRV is now actively moving in response to recovery and hard blocks. Before it was constantly between 10-20, with a few excursions up to 25. Now its fluctuating between 20-80. And RHR has dropped 10bpm. The primary change in my life was switching to more endurance. Can’t be definitive on cause&effect, but the training approach appears to be the reason.