surfinUSA ,
my experiences have been the same as yours with a heese carbine upper i owned. but one must relize this is only a single heese reciever and bbl, and the assembly/fitting was done by others, -Century Arms Intrnational.
who, incidently, also catch a lot of net-flack from the price weighted devaluations of those who may have, have not even shot one themselves. i've had hands-on time with three CAI built FAL's, and one did have probs with substandard parts, and oversized, ovalized pin bores in the lower. even at the lower price range, this WAS NOT a happy owner boasting about the good score he made on a wartoy.
for myself, can't really vote in this election with just a single case history data base. by this i mean:
1- i know for sure what maintenence this has had.
2- i know what quality of ammo made up its diet.
3- i know the magazines were in good shape.
4- i know the gas regulator was correctly adjusted.
5- i know how well other rifles have grouped for me.
could be i was just fortunate. i can't afford to go buy a dozen for a fair evaluation. i knew many people who were very happy with their ford pinto(s) and chevy corvair(s).
just too many variables to form an equation from.
<$0.02,
gunnie