With the benefit of more data and better information on which workouts have a stronger likelihood of completion and better adherence, SSB II has been re-fixed and the swapped VO2max workouts (Tuesdays in weeks 2-5) go into effect today. I feel strongly that this small set of changes will strike the proper balance between difficult and doable and keep y’all challenged, motivated, and getting faster.
There’s more info about why we’re doing this here: Our Training Plans are Improving