This entire zone morph'd from a the basic cribs. It is actually the 5th of 6 zones of man-made structure and/or rock.
This particular area started as the cribs. Then I realized that they provided great protection for fingerlings, but no connection to anything pertinent for spawning. This lead to expansive discussion on just what I planned to stock. Deciding that SMB was a likely player, I got too creative and came up with the saucers to create nearby, permanent rock beds that would be shallow enough, but still work on a 3:1 slope. Then the finetuning of my W-A saucer invention to give it a chance...by adding the sno-curtains and some nearby PVC log structure. This last stuff came from Bill Cody and Ewest's attempt to help me have any possible chance of success.
So, ultimately, this becomes a SMB spawning laboratory. Heck, I don't know what I'm doin' here. I'm taking solid, scientific data and analytical advice, adding my duct tape and spit, tryin' to re-invent the mouse trap.
What if it works?
