Well, I went out and got myself of front and rear rifle sights that mount on my ventilated rib smooth bore. I was able to group my shots really well, with an improved cylinder choke, out to 50 yards!

That's the good news. The bad news is, I was 12 inches high. After messing with the sights (raising the front sight, and lowering the rear sight), I am still shooting 8-10 inches high. I can't move the adjustable rear sight and lower, and I already added about a sixteenth of inch of heigtht to the front, even though it isn't adjustable (I used 4 little pieces of rubber that came with the tru-glow sights to add height to the front).

I think I am going to have to try different sights. If you have some suggestions I would really appreciate it!!

By the way, I tried Winchester Super-X (2 3/4 - 1 oz), and Remington Sluggers (2 3/4 - 7/8 ox high velocity). They both worked really well. The Winchesters went a little left, but nothing a scope adjustment couldn't help. But they both grouped well.