It has nothing do do with opinion, adding chokes tubes takes the gun out of proof, an in proof British Sidelock is always worth more than the same gun out of proof. Guys who write big checks for British sidelocks get this.
What does it matter in the U. S. of A., where there's never been a proof house for firearms, and especially if we are talking shooters, which I thought was the case? Pretty sure guys who write big checks for British sidelocks can find all the "in proof" guns they want without thinwalls installed. Nobody is saying someone should, would, or could take an $80,000 Purdey down to Briley and get thinwalls installed just to prove they don't care about proof.
JR
