On Thu, 18 Dec 2014 11:41:40 -0500, Toad Gigger
wrote:

The Sig decocker allows the hammer to come forward, but not enough to
engage the firing pin. Then the pistol becomes a DA. I've tried it at
the range several times. Works like a charm.

===

It would concern me unless I was at a range. In my mind there are
just too many things that could go wrong if there is a live round in
the chamber.