[jonathan180iq]

I concur.

It's good to mix it up every now and then, but when every time you slush new gas into the mix, you're already mixing whatever is in the bottom with the new stuff.

And while on the topic, be sure to use some sort of carb cleaner every tank or three, just to make sure you maintain a clean working environment. The majority of issues with the GZ are because of the carb getting gummed up.