Just reading through the old forum posts, and came across one talking about rest between sets.
Are we allowed to take as much rest as needed between the sets of headstands, 'cos I think this would mean I'd be able to achieve mastery for PE2 whereas if it was only 15 seconds rest I think my head and neck would hurt too much to finish.
I haven't quite mastered the iM anyway but it would still be good to know as it would affect my practice.
Thank you.