I developed a sudden case of "gotta have a M/L shotgun" so picked up this well worn 16 gauge off a fellow on Gunbroker. After breaking loose the screws and cleaning up the bores a bit, I was a bit disappointed with the low rib with the barrels sticking up above.
A piece of steel 3/8" wide glued on with black silicon sealer and a #2 birdshot superglued on (temporary) solved the problem. the silicon is very tenacious and is not likely to ever come loose unless purposely cut off. The bead will be replaced soon as I come up with a little brass screw.
I hit 75% of claybirds from a foot operated trap first time out! Strictly a close range proposition for now.