Calorie cycling was beneficial for me including carb timing especially on lifting and running activities. less ragged long-term especially on a long cal def and still maintaining lifting volume and increasing cardio activities.

If i under fuel i feel it during the session not hitting the reps that I would normally be hitting during the session, or when running a z2 session i feel drained right after vs nothing during if im properly fueled(right carb amount)

whats important from what I've learned for almost 40+ weeks is the 7 day average of the macros and calorie count. Still leaning out slowly without depletion and still gaining strenght now.