Tucker [Dupree] is an excellent clinician, he adjust his teaching according to the skill level of the swimmers, and even there is quite a large range in different levels of swimmers, he separated the swimmers into two groups (one with more advance drill, one with simpler drill). He tried to ask swimmers to fully submerge flip turn and quickly realize only one or two swimmers can do the drill, he changed to a different drill. His voice is also loud enough to have all the swimmers hear what said. Finally, it is very nice for Tucker to encourage the parents to stay on deck, so we can see him teach our kids.