To me, the real benefit of the LS and NL variations is the single side safety/decocker. Which is why I changed out the ambi one in my pre rail 3913TSW for a left side only one.
I will admit though, the advantage is probably entirely in my head.
And what is the difference between these 2 guns? GARY3913 and 3913TSW pre-rail.
I also live in California and have to deal with our anti gun laws prohibiting us from buying older guns or guns not on the DOJ roster of approved firearms. We can only buy non roster guns on a face to face sale.
And what is the difference between these 2 guns? GARY
This does make a nice difference! I was lucky enough to come across a few of single sided controls and applied them to my 6904, 3913 and 3913TSW pre-rail. It doesn't make a huge difference like you said but I like it. That's another reason why I like my 3954. The LS comes that way so it's all good!