Finished watching last night. One thing I caught was that this took place over the period of more than a year. Based on that, I wonder how much the original designers had to do. I say that because it sounds like the Wilson engineers did a LOT to the designs since they changed things quite a bit.
So, for those who say that these are drivers made by some Joe off the street, the concept was from the Joe, but the finished product was that of the Wilson engineering team.