The early S&W model 686 (I believe up to the 686-1) had a recall because of one particular ammunition company's round that would not play well with it. The recalled revolvers were modified and stamped with a "M" above the serial number. I'm curious from those of you who are collectors of Smiths whether or not the modification takes away from it's value. If you were looking to buy and came across an unmodified one that looked great, would you be pleased it was still original? If you owned one and never had a problem, would you fix what's not broken? Thanks for your input.