I have one under the AGC Cub (with a rangefinder pouch). No issues with the draw, the three point harness is flexible enough to end up just about wherever you want the kydex.
Mine basically sits below my binos but above where my pack hop belt clips in. Granted, it's new to me (had it about a month now, only three days out) but overall happy with it and it's easy to see why they're popular.