The guy in front was blowing up--tossing water and only getting his paddle halfway in the water, but number two was going well. Kai's stroke is amazing, and you're right, everything--board, paddle, and body movement--smooth as glass and perfectly coordinated. The deep stroke is a revelation for me. Both Dave Kalama and Johnny Puakea have been focusing on getting the blade fully in the water and then pushing it deeper as you stroke. I've been thinking a lot about a new paddle design to optimize that stroke.