The wildlife department brought the "big pontoon boat" last year and the guy running it was a guy they called Sparky. He is the fish biologist for Northeastern Oklahoma. Some of my buddies and I were on the boat with him and wore him out with questions. We would build two 4ft square crates with brush weighted down with rocks and then take to a spot, your choice, and simply push the button and in they would go. Most of the time we dropped them one at a time but on one occasion both crates went in. After fishing them this past year I'm thinking that two is the way to go. By the way, our best stringers came within the first two weeks of sinking them. Larger fish and more of them, after that the fish got smaller and fewer, at least for me. Some of the other guys I talked to on the lake said they were doing better than I was

but then that is normal.
At the tackle show in Claremore last Feb, there was a group passing out lit for a brush build on Lake Hudson. They had a come and go weekend for building pvc structure and then the next weekend a sinking party or something to this effect.