I do not think the number of boats built has anything to do with quality or performance.
If you dispute this please see Mystic powerboats I doubt they have sold a ton of boats but they build some of the best and fastest running boats I have ever witnessed running on water.
Second, the less boats you build the more exotic I think the product is for the performance boater. I really think Hustler hit it out of the park with the 39 Rockit ie...home run type of model.
I do agree with posting a GPS photo of the speedo. Look if you have the time and money to shoot a video the final closing shot should be the GPS recall feature.
If you don't then just post a video with no reference to the speed obtained---why because you lose all credibility when you fail to video the speedo somewhere in the video.
I recall the Red Rockit had a photo of the screen GPS and that is the model which should be followed rather than sales pitch and rehetoric.
P.S. Tip why not video the GPS top speed and then followed by the footage of the boat running it really would make more believers than this footage.