I've described the reason for deeper dives & push offs with:
Tip 239 The Suit Surge
from
Swim Faster Faster
Since the new permeable suits don't float was much as the rubber full body suits, I recommend taking in a big breath just before your turn and holding it while you streamline glide & SDK
Pushing off the walls and after the dive, we've known pretty much forever that you have to go little deeper than the surface in order to get more velocity. Phelps (among others) has pushed this principle to a new extent by literally diving deeper after each push off.
I've described the reason for deeper dives & push offs with:
Tip 239 The Suit Surge
from
Swim Faster Faster
Since the new permeable suits don't float was much as the rubber full body suits, I recommend taking in a big breath just before your turn and holding it while you streamline glide & SDK
Pushing off the walls and after the dive, we've known pretty much forever that you have to go little deeper than the surface in order to get more velocity. Phelps (among others) has pushed this principle to a new extent by literally diving deeper after each push off.