Yes, that was what I did when using the gun with both hands, and would be the method most applicable to civilian users on the range. I was refering to occasions where the user was forced to use the gun one handed, either as a natural left handed shooter that had a right hand/arm injury, or was carrying/dragging something/someone else with the right hand; or a right handed shooter forced to do the same.
That, would only really be applicable in a combat situation, or if the user was performing a scenario during training or competition of some kind. As this was a thread on the SEALs choice of handgun, and as the majority of my customers use their guns for more than plinking at the range, it was something that we tested when looking at the guns.
Attempting to drop the slide stop using the proximal pad of your left index finger can be quite challenging with both pistols, but the addition of an extended slide stop lever on the Glock makes it pretty easy with a little practice, not so much with the SIG. The decocker is a little easier, but still requires shifting your grip somewhat, depending on your hand size/shape.
Regards.
Mark
I'm sure you are aware that there are other methods to working the slide without the use of the controls or your hands..
Local.