Thanks for the input guys. I’ve definitely noticed that my pace on hilly terrains is pretty hard to use to track my progression. That being said I can maintain a jog @AET when running on flats, so I plan to use a nearby flat circuit to judge my pace over time.
My main concern is the amount of time I spend a few beats above AET due to unexpected hills, short accelerations to catch a stop light, or even just natural variations in my pace. Is it safe for my Zone 2 runs to barely drift into Zone 3 for 5-10% of the duration? Or should I just slow down and not ride so close to AET.
Thanks!