I use a wide elastic band with a pocket that guards the trigger. Plus, the trigger pull is significant as a safety feature, and I have not had any trouble or concerns. Very concealable IWB and adjustable to many kinds of clothing regimens.
With a DAO pistol, you do have a long trigger pull, but I’d definitely practice drawing technique (unloaded, of course) as much as I could. My carry has both a strong-side thumb and grip safety, so I’m quite comfortable with keeping a round “up the pipe” while inside my Uncle Mike’s waistband holster.