Those Snap On's are bad *** but very hard on the ears, the CP's hit hard but are more controlable, and the 717 has a .498 shank bit and hits so hard it will hurt your hand.
I use a short "whip" hose between the regular air hose and the gun. It has a little ball valve built into it, so I can easily dial up or down the air pressure so it's easier to control depending on what I'm working on.