Might not be the preferred solution, but rather than replace ALL my holsters, I just drop my SF X300 in a mag pouch. I get one less spare mag on my person but a much smoother and faster draw from a holster I already have great familiarity with. I can snap a SF on a carry gun faster than I can change a magazine.

If shit had started without me, probably not gonna be using the weapon light anyway. But if shit hasn't happened yet, I can use the X300 as a hand held to check my environment without having to draw my carry gun. And if shit is looking "iffy" at that point I can draw my carry gun and snap a light on the rail. So far it's been working well for me.