“Should I be including the time in each HR Zone in the training volume for the week?”
“For planning purposes, should I be taking, for example, 4 hours minus 2x 1 hour general strength sessions, leaving 2 hours of Z1/Z2 workouts. Then increase just the Z1/Z2 time by x % per week?”
Correction: Sorry, missed that 400 hours was for aerobic time in TftUA.
Would still appreciate guidance on my other questions.