This is human anatomy 101, and not debatable. Whether you are Shaquille O'neal or Quasimoto the straight grip places the hand in a greater degree of ulnar deviation than does the typical pistol grip. This rotation necessarily gives the 2nd finger greater reach. This result must obtain unless the triggering hand merely lies alongside, and is not allowed to even slightly grasp, the grip area. I have not seen such foolishness described by any author - though it seems like a great way to get one's knuckle rapped in recoil.
Whether this greater reach translates as a significantly greater required/desired LOP can certainly be debated.
Sam
