I just watched a great video entitled Swim Slow to Be Fast. I found it to be very interesting and sound advice. It is primarily meant for Tri Atheletes and distance swimmers..
I think you got to swim both slow and fast to be FAST.
I read that Popov spent much of his time swimming slow (by his standards), but his coach would have him do race pace sprints, off the blocks randomly with no preparation. Didn't matter if it was at the end of practice or in the middle of breakfast, he had to be on the blocks ready to sprint even without warmup.
I think you got to swim both slow and fast to be FAST.
I read that Popov spent much of his time swimming slow (by his standards), but his coach would have him do race pace sprints, off the blocks randomly with no preparation. Didn't matter if it was at the end of practice or in the middle of breakfast, he had to be on the blocks ready to sprint even without warmup.