DIY_guy, did you heat the metal as per the instructions for Froglube? I wonder how much difference it makes especially on the friction, and corrosion tests?
It would have to be done for all the products though to be fair. The heat will allow the products to penetrate deeper into the metal surface at least that's the theory for Froglube it may apply to the others as well.
Well executed test, look forward to more of them when and if you can afford time and resources.