Trust me I was extremely skeptical when I first got mine. but the way they work is amazing. they force the gold under water into the trap witch is essential to catch the small gold and there it stays. small gold can float on the water but the way the bazooka works the material that's in the trap when new material is entering the material in it bulges up creating like a mit to catch it and then gravity pulls it down into the trap. and because it's all fluidized the gold sinks to the bottom. watch these two videos. the music is kinda crapy but he explains in detail how the bazooka gold trap sluice works and he shows it to its a great video set up once you get through. then you'll understand why I love the Bazooka is thing is amazing for small gold. they use these on the colorado river. the gold there is 100 mesh and smaller. in utah where I'm at we have extremely small gold to. and if it catches the fine gold it'll catch the biggest stuff no problem.
here's a video on how theBazooka works. I'm sorry for the horrible music and lighting but if you watch it all the way through you'll understand how and why the bazooka works so well.
Watch "Looking for Gold - Episode 6 - Bazooka Gold Trap Sluice - Part 1" on YouTube
Looking for Gold - Episode 1
https://youtu.be/IlKmPslbKe4
Watch "Looking for Gold - Episode 6 - Bazooka Gold Trap Sluice - Part 2" on YouTube
Looking for Gold - Episode 6 - Bazooka Gold Trap Sluice - Part 2:
https://youtu.be/l5qdo5S9YWM
and not having to classify is a huge huge deal. with a regular sluice over half your time will be spent classifing the bazooka Just goes straight from the river to the zook. ol from the river into a bucket then to the zook.
the mini or sniper are great to use for starters. there great backpacking and such. and the sniper will easily eat more material than a regular sluice. even a keene a52. that's saying something. just remember the smaller ones have to be fed slower. like the mini a green jobe scoop works great. or a bucket just feather feed it. the sniper can handle more material and it's 30 bucks more than the super mini. there the same length at least if you go the 24 inch sniper. but it will handle more material than the mini.
with the bazooka it's not how big the sluice is. it's how big the trap is. that trap determines how much you can feed it at once. now if you just slowly poor from a bucket you won't have no problem. but you take the mini or the snipers and try feeding them a hole shovel full all at once you'll over feed them. I've seen people stick there shovel on the skid plate and let the water slowly wash the material off it. that works well. that's one thing you have to understand. how much material can fit into that trap at once determines how fast you can feed it. but again the sniper will still eat more material than the keene a52. the mini is Really close to it as well just because you can straight scoop from the river or use a bucket then just sit and slowly poor into them.
but I'd definitely recommend the Bazooka to anyone. I've got 3 of them the mini, sniper, and prospector.
I won't use anything else. I'm trying to get rid of my Keene A51A. Just cause I have no use for it anymore