I would have liked to gone a couple feet deeper, but the soil conditions at the time I built that one simply wouldn't allow it. That creek bottom gumbo was getting super punchy by the time I called it good. I was afraid that if I kept digging I was going to break through and wind up in the soup. That would have been embarrassing because I'd have had to call good neighbor Dave to come over with one of his big John Deeres to pull me out, and then for the next 20 years I'd have to listen to him tell the story about that time I got stuck and he had to come save me. lol