Strongly suggest a Centennial Airweight; specifically, a 442 Moon Clip.

And although you acknowledge a dislike for IWB, consider Alessi's Deep Cover -- it sits much lower than the usual IWB, and uses a flat, offset clip that bites into your pants, not over a belt. I'm not big on IWB either, but in my experience a 442 in a Deep Cover disappears even under light clothing, and are virtually unfelt when carried.