The hopper, beetle, ant program works well down there....Long leaders if its low & clear, toss em under stuff, and bounce them off the bluff faces. Foam flies are great at times...but they float higher than stuff tied with natural materials...As for beetles....Its impossible to top a Jarosik Beetle....Jerry doesnt tie anymore...but his beetle is a stunner...I save the dozen or so I have left for for big picky fish that have refused other offerings.
Al Borisaw, did a pretty good tutorial on the Jarosik Beetle...The ones I tie are pretty good...but they arent as good as Jerry's IMO.
http://www.ozarkflyfishers.org/fly/printfly/crowebeetle.pdf
Cheers.