Capt. Rob wrote:
Only boats that waste energy on bow waves attract dolphins. My boat
glides through the water with almost no wave making resistance.

Dang! They were also following a big Swan out there. It was the only
boat out faster than us. I guess those Swans are wasting energy too!!!

Of course they do. If you knew anything about boats you'd understand.
Why do you think my boat is faster than yours in a breeze, at all
points of sail? Why do you think my boat can do 17 knots with less
sail area than yours? It isn't by making bow waves!