Hey, so I'm having my 320sc milled for the RMR pattern. The RMR is proven... The SRO is newer, and apparently not rated for "duty service". However, i love it's larger glass, top battery and all that. I don't mind how it hangs over in the front. Cost is redundant. I carry at 4 oclock, I'm careful with my stuff. Basically, all other things equal, on your daily carry, which would you take?