zincwarrior, this is why as you train more, you start mixing up the scenarios more.
Assuming any one option will be available when things happen is a setup for failure.
Training at multiple options, until any given one can be done reflexively, offers better survival odds IMO.
Oh I do quite often, as much as the local range permits and can shoot in any position or on the move. But I also realize I'd likely go into "muscle memory memory mode." Considering the most likely scenario is walking dogs, I'd likely be on one foot, holding a wiener dog under each arm...