How to survive long sweet spot intervals?

[MadTuna]

Hey,

You will find plenty of info here

Sweet Spot Progression

What is the optimal way to progress sweet spot duration? Assume the cyclist has completed a couple seasons of structured training and is just coming off their current season and a couple week rest period. In other words, stating the base phase for the upcoming season. 3x12 > 4x10 > 3x15 > ? > ? > ? Do we like to drop the number of intervals at a certain point in the progression and start going for longer durations? Say that rider is nailing 3x15’s, would it be better to go 2x25 versus 5x10 (bo…