I think "Josh Redstone" means to have a lighter collision between the pick and the string, so that you dont waste time for releasing the pick from the string.

You can do this by moving the pick a little bit away from the guitar body, so that you attack with a less area of the pick... Also a heavy pick is always helpfull (I use Dunlop "Gator Grip" 2mm).

This is not the right way for picking everything, cuz sometimes you may need a heavier attack, enabling more of the pick into the attack... It depends on the line you're playing.