Well guys, I've been using Souveran for a number of years, and have been using TS for over a year now. I've tried them side by side (along with P21S, and a couple other good carnaubas), on various colored vehicles. To me, Souveran simply looks "ever so slightly" better on "most" dark colored vehicles.
I never judge the looks of a product right after application/removal. I give it a few hours to cure, or even overnight before I come to any conclusions, and check it under varying light conditions.
Anyhow, here's how I see it.............
There are various "grades" of pure raw yellow carnauba.
There can be a different "percentage" of pure carnauba used in various waxes........... some higher than others.
Some carnauba waxes are "purified", some are not!
Some people claim that the process to purify uses bleach, which may, or may not be good?
There can be other types of waxes, like micro-crystanllines, beeswax, and Montan wax added to a carnabua wax.
There can be various types, and quantities of "oils and silicones" added to carnauba wax.
There can be various types, and quantities of "solvents" added to carnauba wax.
There can be various types, and quantities of "emulsifiers" added to carnauba wax to stablize the product.
There can be various types, and quantities of "surfactants" added to carnauba wax.
In the end, products like TS, P21S, Natty's and a few others are very good products indeed. Still, I believe that Souveran is a different product than TS. Is there much of a difference in the makeup of them? Maybe, maybe not.
Personally, I don't think one can go wrong using any one of them. However, I would be just as skeptical of the owner of TOL caiming his/her product was the same as Souveran, as I would that people at Pinnacle claiming they are different.