I have done the same as Elan is doing, using the F165 with two spoons in two separate containers.
What I came to think of is that I seem to only get a lot out of my left foot, where I use the red wire, which I think is the negative one.
So I now have one very red "messed" up foot from toxin blisters, and one right foot which looks ok.
Should I better be using one container and put both of the electrodes, both red and black and see if that makes the "pull out" more even between the two feet?
Also which more powerful/consumable electrode would you reccomend?