Thanks, Mr. Brown. I won't even try to get into the patent history; probably a real mud pie...

Can I still get hold of the Polychoke people and find out how their ribs are/were attached? My "Lion" deserves a better one or none at all (I don't have a problem with ribless O/Us; have shot Savage/Valmet 330s without ribs and a low-end Beretta. Didn't make much difference in my lousy shooting...).