I was a Valmet distributor until the move to Italy, when i refused to carry them any longer. AND, i NEVER saw bbls., "S" or otherwise, that didn't need fitting. As a distrubitor, i was NEVER informed by the factory or Valmet USA that the "S" bbls didn't need fitting.

I did all the fitting in my shop, and every bbl. i sold DID need at least some fitting to a new action, EVEN though it may have went on the new action "appearing" to not need fitting...

BTW, i still have numerous NEW bbls in my collection, and every one of them will need some fitting before going on one of my actions...

DM