It is interesting to read all the comments. Dyna-Ski Boats has addressed many of them already. I will make some improvements. The old 18' (17. 6") and 20' (19' 4") are very different than the new 20' 1" (20') and 17' 9" (17.6) designs.
A modern Dyna-Ski does not have speed holding problems at any speed unless the marina did a bad set up job. We now avoid selling to dealers to avoid this problem. Dyna-Ski boats turn very short.
When your outboard gets old you can easily replace it and get modern improvements without having to sell the old boat.
The used market for Dyna-Ski is nonexistent because owners seem to keep them forever. Even old Hydrodynes seldom hit the used market. Three Rivers Industry last built Hydrodyne outboards in 1991 or so.
Dyna-Ski Boats handle big water and rough water well. Rough water ride is excellent. Several customers use their boats on the oceans of the world.
The driver, spotter and passengers can touch the water in the boat.
Sorry but snap in carpet is a joke. It shrinks and never fits right in a short period of time. Best bang for the buck is good old fashioned carpet. Cheap to replace also. We have built a couple boats with non skid floors but it is only when the customer insists on it. To rough for my tender old feet.
The manufacturers need to once again produce better vinyl to solve an industry wide problem of short life span. I tell everyone the seats will go bad first. Covering the interior vinyl when not in use really helps. We use fiberglass seat bases to make it easier to redo the seats.
The Dyna-Ski back seat comes out fairly easy as it is held in by two pins.
GPS Speedometer and a dash full of analog gauges has been our standard since GPS Speedometers came on the market. I love them.
The Dyna-Ski Blog should have moving wake pictures as we did a video for a 17.6 & 20' Open Bows. I honestly don't remember but I will figure out how to get pictures and maybe videos this summer. Blog is www.dynaskiboats.com.
17.6 with a 115 Evinrude pulling two barefoot water skiers. 75' lines with 3 people in the boat.