Sinking hips during recovery in fly

Hey Solar, Your approach of working on your fly through slowing it down and swimming longer distances caught my eye as it goes against the conventional wisdom of swimming small increments of faster fly. The conventional thinking is that your stroke changes when you slow it down, you mention swimming lower in the water for example. One of the things that usually changes is the pull pattern, when people slow down their stroke they usually either throw in a pause of the arms out front or use a more pronounced out-and-in scull at the front to get the same delay. The youtube Michael Phelps Butterfly 01 video is probably the best illustration I've seen of a wide entry with little to no outscull. I looked at your sculling in your various youtube videos but didn't come to any definite conclusions, it was interesting though that there seemed to be significant variation within your 100m fly video, it looked to me like you scull more as you tire. I was looking at this video recently: YouTube- Butterfly Stroke Comparison and I think there are some clues there on timing issues which you might find interesting. Notice the way the top swimmer's hips come to the surface, my theory is that this is achieved by timing. Compare your hip motion in the first 25 of your 100 versus the last 25 or versus your endurance stroke. The bottom swimmer illustrates an extreme out-and-in scull. I'm interested in what led you to try the endurance fly approach versus the more conventional short intervals approach?

Hey Solar, Your approach of working on your fly through slowing it down and swimming longer distances caught my eye as it goes against the conventional wisdom of swimming small increments of faster fly. The conventional thinking is that your stroke changes when you slow it down, you mention swimming lower in the water for example. One of the things that usually changes is the pull pattern, when people slow down their stroke they usually either throw in a pause of the arms out front or use a more pronounced out-and-in scull at the front to get the same delay. The youtube Michael Phelps Butterfly 01 video is probably the best illustration I've seen of a wide entry with little to no outscull. I looked at your sculling in your various youtube videos but didn't come to any definite conclusions, it was interesting though that there seemed to be significant variation within your 100m fly video, it looked to me like you scull more as you tire. I was looking at this video recently: YouTube- Butterfly Stroke Comparison and I think there are some clues there on timing issues which you might find interesting. Notice the way the top swimmer's hips come to the surface, my theory is that this is achieved by timing. Compare your hip motion in the first 25 of your 100 versus the last 25 or versus your endurance stroke. The bottom swimmer illustrates an extreme out-and-in scull. I'm interested in what led you to try the endurance fly approach versus the more conventional short intervals approach?