Been in the saddle for well over 60 years and never fitted. Yet I wasn't ever a competitor so more about comfort for myself. However, I enjoy riding enough that I want performance and the economy of effort to be in the game as well such as, best effort per mile without exhausting the gas tank. I may have to give this a try sometime. Have a gravel bike as well as a carbon roadie with aspirations of doing many miles a day in the bikepacking venue so, fine tuning the bike for gravel and the roadie may be in the cards. So far, like you, videos, and just simply tweaking here and there. So far it has been ok, not stellar but sufficient enough. Both of my bikes use drop bars. Seats, seat height, fore and aft positioning, handle bar height, fore and aft. They say a shorter crank may be beneficial but I've stayed with what generally come with any off the floor models they push on the public. Works well enough. I would agree however on the professional fit, only if one is young, energetic and or competing in the many different forms of bike racing. As we age, the mobility become less and less so comfort exceeds all. Liked your video. I have viewed a couple now with about the same information in their conclusions. I would highly recommend the 75 package as this would give one a longer time to evaluate their bikes and riding styles in a more comfortable time line rather than trying to cram it all in 2 weeks.