Is there a particular brand of vodka to use?

Does the brand of vodka matter?

Any vodka, 80 proof (40%alcohol) or higher is fine.  If you're only going to use it as benzo solvent, I would buy the cheapest available.

I first bought Seagram's. It tasted like gasoline. I decided I might as well buy nice vodka if I'm going to use it so sparingly. So then I bought Grey Goose. It was OK. It took me 6 months to use that bottle. Then I decided to try Ketel One. It gives a sweet taste to the solution.

I bought the cheapest vodka I could find per Builder. I top it off with flavored water. It doesn't take much to cover the small amount of cheap vodka flavor. I'd use Gatorade or Pepsi, but I can't have sugar. The fruity water does the trick fine though.