I don't want to sound defensive, but can you cut me some slack? I'm not pretending that this is some reliable mathematical model and never have.
It would be great to know the chemistry of each product, but I'm neither a mathematician nor a chemist, just an buyer trying to determine the reliability of the manufacturers claims and the extent of the hype about their products. And good luck getting any data from the makers about what they put in this stuff. Although they don't hesitate to make some very wild claims about their product chemistries, I doubt they'll reveal anything that a scientist would find acceptable.
The test I've constructed was the best I could to do simulate what we experience with these products. As a consumer my concerns are largely three: how much to they improve the gloss and depth of the appearance of the paint, how long does the improvement last, and what kind of protection is provided for the surface? The latter, as I've said, I can't answer. The first two are what I'm trying to determine. I've invested a huge amount of my own time and money in this experiment. Yes, with better instrumentation and a better experimental design, we might get more reliable results. But have you looked at the so-called tests that are out there? Mine may be flawed, but it is a step in the right direction.
In the end if I just satisfy my own curiosity I'll be happy. I'll buy the products for my Model S that the tests reveal are superior. Everybody else can do whatever they want.
I think your results will be infinitely more reliable than the product claims/marketing, or the opinion of a detailer (I used to run a detailing company, we ALL have our prejudiced opinions of products based on all sorts of things, such as what freebies they give me, ease of application, profit margin for me - i.e. nothing that benefits the end user!). I've already gone with Opticoat, and I'm impressed enough not to change my mind for as long as the finish lasts, but I still want to see what your results are, and do appreciate the fact that you've put a lot of time, and money into making it as fair as possible.