I can't speak for IWB or any other groups of shooters, but for myself only, out of AIWB: I absolutely get a full firing grip when gun is in my concealment holster. The times when I recognize when I don't, I stop and dry fire till I do again. Usually happens when I push speed and do not wrap fingers around the front strap fully. This is the only video I have of me drawing from concealed at Gabe's class almost 5 years ago. You don't really have time to tweak the grip at a light pin run speed, and you can't hit at a light pin speed with a compromised grip. The gun is P30 LEM but I get a full grip on every concealed gun I have, including a 1911
https://www.youtube.com/watch?v=l-Or...ature=youtu.be