Some of the places I poke around have huge amounts of black sand. I watch a lot of videos also and hate to pan black sand for days. I saw the miller table and instantly fell in love. I am a bit of a tinkerer and built my own. I start it at the lowest setting and start pitching it up to increase velocity. I sweep the gold into a pile and snuff it up, that easy... I haven't used any of the wheels but I understand they can be used dry and can capture gems.