I currently have my Recce set up with a 3 o'clock mount 500 Lumen Scout, SR07 switch at 12 oclock. My spare gun is 12 oclock X300U. Overall I like the setups, but would rather have the SR07 on the X300. If I have a preferance, I prefer to run the flashlight below the 3-9 positions to avoid as much gas as possible, and always on the opposite side of the body. I do not care for clicky switch's if I can help it, just never had good luck with them if they are on anything longer then a 7 inch rail.