Sólveig
Well-known member
from
Burn & Build Workout
Burn and Build is a Level II workout that helps maintain your fitness level on those slow days.
darebee.com
It mentions Difficulty Level II workouts. Judging by the context, I guess it means the Difficulty of the workouts instead of the Levels that give you the number of sets to do. If such, then workout is listed as a Difficulty Level III workout instead of Level II.