Dropping In Surf Show Podcast A Wave’s Sweet Spot, Generating Speed, Brain Delays with Harry Knight
Jun 23, 2021
Harry Knight, head coaching director at Surf Simply and surf technique specialist. He unpacks the wave’s sweet spot and when to use power paddles. They talk generating speed on a wave, how bottom contours and tides change timing, and the brain’s ~80 ms processing limit for real-time coaching.
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Stokes Wave Math Explains The Power Pocket
- The paper models a Stokes deep-water wave to show how particle velocity and acceleration concentrate near the crest as it breaks.
- Harry and Rob note shallow-water breakers differ, but the core idea—acceleration under the lip—still explains the wave's 'sweet spot'.
Time Your Turbo Paddles Before The Curl
- The wave's highest acceleration sits just under the curl, so timing your power strokes before rapid acceleration gives the best chance to plane.
- Harry and Rob recommend a three-stroke burst starting as the wave steepens (around E–F) so you're already planing before the wave's acceleration explodes.
Intercept Waves With Early Positioning
- Use dynamic wave selection: paddle early to intercept the wave so you arrive in the optimal spot rather than desperately sprinting at the last second.
- Rob explains skilled surfers paddle many strokes well before the wave arrives to position themselves, not because they suddenly need speed at the end.