Jhargis get's the cookie.
As far as "working" as well as the stock fluid, it seems that in some regards the Cocktail works better; for example, it seems to initially smooth out shift quality, and intially permit proper syncro operation.
The key word is "initially". The fact that you guys have to drop oil every third oil change is absurd, and indicative of the poor nature of this lubricant. You claim that you're saving money with this fluid, but frankly you would save even more money just using a good fluid that may not have the same seat of the pants feeling but also isn't going to wear off in a few months.