Please don't think I'm being condescending or questioning your abilities, but I can hear your frustration with what myself and others are saying about what we are recovering. It's not that no one disbelieves or doesn't understand what your saying it's just that we are not having the same problems. I was thinking about what you'd said about Todd's "disclaimer", he's a business man. He is going to tell you the results of what he knows the Bazooka will do in the average prospectors hands. That's just smart, Todd's a good guy who's not gonna mislead you or give you false expectations, not his style. We've all told you we have and are constantly checking what we are recovering, some of these guys here have some serious time behind these traps and have them down to a science. I would say I'm average in my bazooka abilities and I'm telling you mine recovers black sand like your "flour size" photo all day long. I will say that I typically use mine different then most as I'm a crack ho most of the time, I don't shovel into it, I'll scrape cracks and classify into a bucket until it's full then feed it with a scoop.
Curious what river were those black sands in the photo are from? Is it the only river you've ran your Bazooka in? The grainy black sands in the photo were pretty big. Up where I'm at there are two rivers not 10 miles apart- Butte Creek and the West Branch of the Feather River. Butte Creek has super fine black sand like your bottom photo, looks like cream of wheat in the pan, but black obviously-lol. The upper West Branch you'll never see a piece smaller then the top photo, never. So maybe location has something to do with it. Are you close to Placerville, ask Todd or one of the guys on here to meet up with you and see how they are running their boxes. Again not saying your running it wrong but I'm pretty sure some of the folks on here that know these boxes inside out can help you improve your take.
Another thought, run your bazooka into a masonry/tub, you might even try a curtain or deflector to make sure your knocking down the discharge. Run five gallons thru the trap then run the tub thru your ez-sluice. Compare the two. Then reverse the sluices. Grab another five gallons and run it thru the ez-sluice into the tub and then run that thru the Bazooka. Hate to see folks develop hard feelings over a chunk of ABS (although a beautiful chunk of ABS), good luck and take care- fowled