The best feature of the Walthers and the Radom are they had a decocker. I would bet there are more accidents caused by a hammer slipping when lowering it on a 1911, than any other type.
When I was 18 in 1965 I let that happen to me. Fortunately I had the pistol pointed at the ground. Either the slide or more likely the hammer cut my thumb. I still have a small scar to remind me.
In a way, I am glad it happened. I have never had another NG and doubt I ever will.
IMO manually lowering the hammer on a 1911 with a round in the chamber makes no sense to me. If you have one in the pipe, cocked and locked is the way to go.
The Sig P series (226, 229, 220 etc) have the best decocking system going.
I guess NG stands for nasty gun but I meant to say ND for negligent discharge.
Something I learned "the hard way" (similar to your experience) is that the only "safe" way to "de-cock" a 1911 is to drop the magazine, eject the chambered round, and depress the trigger with the muzzle pointed in a safe direction.
Mark