I've got a bridge in Brooklyn for sale also . Anybody care for some Green Cheese from the Moon ? It's all in the advertising ! It's all processed cons your getting ! Anybody can and does make up these !
I don't know, sounds a lot like squirting extra water from your snuffer bottle into the stream instead of into a pan. Probably won't lose anything but maybe.
Shaking makes the gold go side to side and down as you tip your pan before you wash off the less dense material. Swirling as you tip makes the gold go around and around and up and down. If the gold is small like the glacial dust I find I can wash it right out.
I guess with clay pay dirt swirling with the pan level would help break stuff up. I don't have much of any experience with clay.
Edited to add- ask yourself this- at 9:45 in the video why is his black sand on top of the pile?
He did not wash yet and he has black sand on top. I like to put the dense stuff in the corner before I wash ought the lights. YMMV.