From reading some other posts I assumed it was OK to train multiple progressions at the same time e.g. 2.1 and 2.2 etc. However looking at the workout scheduler this does not seem to be an option, do we have to achieve mastery in 2.1 before moving on to 2.2 ? Also do we have to achieve mastery in 2.1-2.6 before moving on to 3.1 etc ?
Thanks!