I don't care what they say.
As far as I'm concerned, that floating thing is nothing more than a engine powered wet classifier used to filter out the small size particales from the big ones.
You still prospect for gold with a pan. The machine classifier only allows you to work more area in a day.
All the rest of the arguments from the wacos are total unrelated POOP thrown out to cloud the real issue.
They don't want to see anyone prosper, but themselves = GREED
I'm convinced it isn't any more complicated that that!
Dickb