Where you hold the forend controls the speed of your swing.

It's like an ice skater. When she wants to spin fast, she pulls her arms in, to slow down she extends her arms.

Same with a shotgun. Hold out with your front hand, the gun slows down.

Somebody 'splain to me why you would shoot a short barreled gun for the supposed lightning quick dynamics and then handle it with your arm straight out.

"The price of good shotgunnery is constant practice" - Fred Kimble