One lane kick set

Coach Erik WikenSituation:I have our highest age groupers, but there is a range in kicking ability from the newest of the group (1:50, All out FR kick with board) to most experienced (1:20, the same). We also have a transition period where we are limited in space for a short period of time (15 Minutes), there are four different groups in the water, every day. Yesterday we did this with 11 in one