Good luck Stan. I hope Dickinson helps you! If not, 8" is a lot to remedy at the choke. Might be better to remove ribs, move barrels apart a bit and relay the ribs (since right barrel is shooting 8" left and left barrel is shooting 8" right). In terms of analysis of POI, sometimes I like to shoot at scum on a pond. It helps me analyze where a gun is shooting. Also, if you can smoke low 7's on the skeet field, then the gun is likely shooting where you are looking.

Socialism is almost the worst.