Why is the model G safety mod recommended? I'm not sure I understand what it does specifically (decocks but stays in condition 1??), mine does decocking fine as is.
The G model modification makes it a "decocker only," like the decocker lever on a classic Sig P22x series pistol. The lever will spring back up into the fire position, there is no way to put the pistol on "safe." This is preferable for a lot of people who don't like a manual safety on a pistol. This includes me. I'm not a big fan of DA/SA pistols, but did just order a police-trade S&W 4006 to play with, in large part because it is a decocker only model, specifically built with that feature for the requesting agency.