I watched that F9 video and it surprised me how horrid the fuel stabilizers performed. My personal method of storing engines for long periods was to use 100% gasoline (no ethanol), fill up the fuel tank, and drain the carburetor. I had been using Seafoam as a general fuel stabilizer, to keep the gasoline from losing as much of its volatile vapors as it would without any stabilizer. All of my small engines run 100% gasoline as it is, anyway. Generators, power washers, lawn mowers, etc. They all seem to prefer regular gasoline without ethanol. I run ethanol fuel in my motor vehicles, but so far I have kept to the 100% gasoline in my '14 V7. If I am out and have to refuel with 10% ethanol fuel, I run the tank out as quickly as I can. But they are always stored overnight with a tank completely topped off with 100% gas.
So far, so good. They start easily the next time I go to use them, after a pull or two to get gas back in the carbs.