I've been running an RMR on my P DPO for over a year.
It's been excellent for me, but do not want a smaller window.
Really liking the gun and how it handles. I have an X300 on it along with the magwell. It's a tad bulky IWB, yet it performs so damn well.
I knew it would most likely happen one day....today is that day....just added a C2.
Will mount a smaller light, most likely a TRL-7A and take advantage of the shorter config IWB.
I have zero doubt that an identical RMR will find it's way atop the C2.
What is funny is that I've never noticed "slide side overhang"....couldn't tell you if there is any or not. I'd have to grab the P DPO outa the safe and look it over. I've simply never noticed.
Optics are mighty personal....what one eye likes....others don't.