Left foot kicks down as right hand starts to enter then extend. Only kick DOWN, don’t do an upbeat as the leg will naturally just go up when the other leg kicks down on the next pull. Can also think of it as left foot kicks down as left hand presses back in the pull (as right arm extends).
if I am picturing this correctly (and I am certainly not claiming that I am
Doesn’t that mean your hip on the side you are pulling will be “closing”? i.e. my left foot is kicking down, and since it is atached to my hip and I am kicking with, more-or-less my whole leg, my left hip is then “closing” as my right arm enters/reaches. Since my right arm is doing the reaching at this point, I must be pulling with my left arm into an essentially “closed” left hip. Kind of pulling my arm down into the water as my hip also dives into the water. That doesn’t seem very hydrodynamic to me.
Why anyone would want to take 3 times as many kicks as necessary in an event where the rest of the race will be leg dominant is beyond me. I struggle to hold a 6 beat kick for more than 50 yards - it is fine for getting out at the start but then settle into a comfortable 2 beat kick pattern.
I think a 6-beat kick in tri is way “different” than it is for a sprinter in a 100M free (but what the hell do I know, I certainly am not gifted in the water!) Instead of KICK, KICK, KICK, KICK, KICK, KICK, it is KICK, kick, kick, KICK, kick, kick. The big KICKs are similar to the 2-beat kick that you describe for propulsion, but the two little ones assist in balance in the water and “get you ready/coordinated” for the next propulsive kick.
One really important difference though is that the propulsive KICK is exactly the opposite of what you describe. Kick down with your right foot as your right arm reaches forward (more specifically as your left arm pulls). What this does is assist your core rotating muscles in geting your hips “out of the way” of your pulling arm(s). We all know that rotation of your hips is where a ton of your power comes from in swimming, not your lats, and certainly not your arms. “It’s all in the hips” …swimmers, golfers, tennis players, baseball pitchers (and hitters). The stroke starts with your hips yanking your body around to get lots of power. So reach with your right arm, pull with your left arm = kick down with your RIGHT leg. Right leg kicking down means left is coming up and so is your left hip, inline with the rotation you are trying to get (and thus propulsion)
Again, I think I suck at swimming, but seem to hold my own…not only does this “work”, but it makes sense from a biomechanics perspective. (or I’m wrong and that would not be a first)