SSSBMV2 has:
- A VO2 max progression focusing only interval duration while holding Tiz and Intensity Steady
- A threshold progression in the 36-40 min Tiz range focused on intensity and holding interval duration steady
- A sweetspot/OU progression that increases Tiz and interval duration to a degree but keeping intensity in check
Maybe you and I have different definitions of what driving all things simultaneously means but SSBMV2 is easily one of the best designed 6 week blocks in the TR catalog.