My all time favorite shotgun, an 870, with 14" Brl; and full Chote pistol grip stock. (14" Brl. legal in Canada, left behind when I moved to Florida) so quick to maneuver in IDPA competition, search technique, tuck S/G under arm, 45 degree down, you can reach door handle's, etc.
Pistol grip allows more natural wrist position. Keeps elbow closer to your body, in movement.