I was born left-handed, but right-armed. Write lefty; throw righty. I decided to carry 0300 “primary,” when attending a police academy*, in 1983-1984, and stuck with it. Texas had no handgun carry licensing system, for private citizens, at that time, so I could not carry until sworn as an LEO. At age 59, now, with multiple diagnoses, from upper back, and right shoulder down to right thumb, my right hand is no longer a best hand for shooting, but, with the conditioning of bazillions of draws from 0300-ish, engraved into my brain, (muscles have no “memory,”) I have plenty of reasons to keep a weapon somewhere around 0300, while positioning another weapon to optimize lefty access. In the fog of battle, I might reach for 0300, and would rather that SOMETHING be there.
This is nothing new. From 2002 to 2006, perhaps extending to about 2008, it was quite normal for me to carry a pair of SP101 revolvers, or one SP101 and one 4” Speed Six or GP100, in mirror-image Milt Sparks PMK holsters. I may well return to a pair of revolvers being the default norm, but if one is larger, it may well be worn on the left side, and the right-side weapon may migrate to appendix.
Another possibility is 0300, and right appendix, keeping both weapons near each other, which simplifies defending them. If the appendix rig is straight-drop-vertical, a draw that Mas termed the “Roman Salute” allows reasonable lefty access speed.
Another possibility, with which I experimented, during that 2002-2008 period, was primary at 0200/0300, and second weapon in a lefty cross-draw holster at/near the right appendix position. This kept the weapons next to each other, back-to-back, for defensibility. The usual caveats, regarding cross-draw, do apply, but keep in mind that this is “front cross-draw,” and so much more defendable.
OK, time for COVFEFE.
*Drawing an L-Frame’s mass from the then-mandated low-slung duty rig was not unlike throwing underhand, and, I knew that I would mostly be patrolling alone, so the right hip would be more-accessible while seated in a patrol car. Plus, if ambushed while eating, I could return fire without having to drop my donut.