Works well, no loss of gold on the first tray (always double tray to make sure nothing spills). In my opinion the larger ribs could be a bit "deeper", especially when working with 1/4 concentrates. I was afraid of knocking out the gold with smaller edges while panning the flow, so I panned three times. I like finer edges when it comes to an all black sand scene and I try to get finer detail. I find the black pan shows both the gold and green, but it's hard to really see the black sand. I will continue to use it as will my green.