I received my blades this afternoon and put them to the test about an hour ago! (Thanks to @Grundi and @Space_Cadet for the opportunity!)
Razor: Game Changer .84P SB
Blade: Polsilver Super Stainless
Brush: Razorock synthetic......bowl lather
After a nice hot shower I proceeded to...
I have both, and much prefer the .84 plate. The .68 reminds me of the 3 Techs I already own. The Kai blade also does the same to the Techs that they will do for the GC .68 plate. The Kai blade will also kick the .84 up a notch as well.