So I took two of my retired RPE’s and made a over/under style sluice. Kind of like the Spikes Double sluice setup. Took it out this past weekend and it worked really well! With a few minor adjustments it will do exactly what I want. I’d like to be able to shovel on without classifying and keep the larger stones out of my riffles, I’ll put it through a hard test to see how it does this weekend. Thoughts?