In the show, players had to select the top, middle or bottom screen to move forwards. Get a question wrong and they hit a "hot spot" (where they would lose all the cash they had won).
Let's try a little game with your own swimming to do with how you enter and extend forwards at the front of the stroke. We'll call it "Top Middle or Bottom".
Anyone will get something from this exercise but it's especially effective for Kicktastics or Overgliders, who tend to show their palms forwards at the front of the stroke:
Instead we should be entering and extending in this position with the elbow slightly higher than the wrist and the wrist slightly higher than the fingertips:
To help you develop this position, put on a pair of fins and paddles (Finis Freestyler paddles are perfect for this) and swim 50m of freestyle, running through the "Top Middle and Bottom" positions.
For about 10-15 strokes, deliberately bring the hand high as you extend forwards:
Then for another 10-15 strokes move to a middle position:
And then for another 10-15 strokes deliberately extend a little low (the bottom position):
Too high and you hit a "hot spot" which adds drag and kills your stroke rhythm.
Too low and your hand instantly dives downwards to the bottom - another hot-spot.
But get in the right position in the middle ground and you develop a smooth rhythm and good propulsion. No hot-spot!
Is this position lower than you might expect? It is for many swimmers. Transfer this good extension into your normal freestyle and you will instantly be faster through the water for the same effort, moving smoothly and continuously from one stroke to the next.
Also see our classic blog post: Don't Start Too Near The Surface