Update from Terence 7/13/10
I've surfed my SDG three times. The first session was in wind blown crap: result, promising. The second session was in 4' to 6' surf with increasing wind: result, fun. Third session was today in 10' swell with 13 second period in windy but ok conditions: result, lots of Dyna with just a touch of Glyde. Today's session proved to me why I was attracted to the SDG design. The looseness and speed of the quad was amazing. I scorched through sectioning walls and spurted ahead of sections, even into a stiff headwind. This is the best longboard I've surfed. You have a very satisfied customer.