So I modified the mini for my outing today, was much easier to secure the sluice than build a dam. I'll have to post pics, but its fully adjustable, and I can stick it in the ground and start sluicing immediately. My question is, I ran material out of a 5 gallon bucket directly into the sluice, after a dozen or so small scoops into it, I notice that some of the pebbles were coming out of the gold box. Is this normal? It didn't appear super full or anything, and I got some good gold out of the box once I panned it, but I was worried that I lost some because of this? Is this normal or am I doing something wrong?