I tried the Ned rig last year after reading about it on one of the fishing forums. Have caught a lot of fish using this technique. Seems to work best in realitivly clear to slightly stained water.
I fish it a little different than what is mentioned in the article. I cast it out let it sink and count to 20, make 1 crank of the reel handle, count to 5 and repeat. Sometimes you will get what I call a bump strike, when this happens I will let it sit for another count of 5 or so, if he doesn't come back and hit it I will the move it a little slowly. Many times this will make the strike and you can set the hook.
You also need to watch your line sometimes they will pick it up and swim off with it and you won't feel it. Tighten up the line and set the hook.
Takes patience but is a fun day to fish.
Good article, thanks for sharing.