The pool I swim at doesn't have the adjustable fin at the back,so the only time I get to start with them is at meets like Nats. I have been told that the back foot should be up high on the fin. This feels unnatural to me and leads to less clean entries for me(but again,I don't really get to practice that start.) What is the reason for the recommendation of the back foot being placed high? Knowing the rationale may help my visualization and and preparation.
