They were very popular waterski boats back in the '60's. Not only for the marathon races they were great for the slalom and jumping contests.
I believe Goodhue Marine sold them. Tuppy had a Hydrodyne with twin Quicksilver engines. 'It take two to do it'. Mom wasn't too happy when he docks at the family camp.
Can anyone remember Digangi's boat. I'm trying to remember if that was a Tahiti or Sutphen?