When I bought a new 1986 ProStar w/Powerslot the hull radiated a lot of mechanical noise. After adding and aligning the engine to the longer PowerSlot strut which came out slightly later, plus 2 props later (same spec), this structurally elastic boat was incredible quiet and smooth.
The new-to-me 2004 ProStar 197-TT is noisier than I expected and has more mechanical vibration throughout the hull than I expected.
RESULT - - Can't get a movie with the Ski-Dock Orbit. This is not the fault of the Orbit. My Galaxy S8 phone is completely unusable and my wife's iPhone 8 creates a very low quality video because of vibration. All individual frames from the iPhone are a blur . . somehow this is improved a little during normal playback, but still very poor.
But the videos aren't really the problem . . its what to do about the boat ?
Where to start without spending a fortune ? Are new props better than in 1986 for balance ? Is prop balancing better than in 1986 ? Of course it may not be the prop . . . What diagnostics can point to the problem ? Shaft, engine alignment etc.
Does this mean anything ? When in reverse, at some moderate throttle levels, the whole hull often goes into an end to end twisting oscillation. I assumed that was normal for this boat but maybe not ?