For those of you who use/design your own plans, how do you decide your “critical/breakthrough/focus” workouts? Target limiters in off-season, then work toward race-specificity closer to the season?
For example, let’s say your TSB/Form is positive and you would like to do a 75-85 TSS workout that isn’t endurance work. What criteria do you use to determine if it’s a SS, Threshold, or Vo2max session?
Thanks for any input