I own two upgrades. One is a Model 12 28ga conversion gun, nicely restocked with an engraved silver grip cap and a vent rib. No one would mistake it for an original. The other is an L C Smith 20ga, upgraded by Doug Turnbull, supposedly when he was trying to establish himself in the trade. Restocked in great walnut with an ebony inlay on the fore end, tastefully engraved in a pattern that LCS never used, including some gold wireline inlay, leather covered pad, wonderful case colors. Turnbull stamped his "DT" logo on the water table, so there will never be any confusion. I didn't buy it specifically because of the upgrade. I bought it because it's a very pretty smallbore shooter with straight grip and 28" barrels, choked .006" in both barrels. And I would gladly trade it for that .410 Belgian hammer gun, but only if it has 28" barrels.