That is a sweet, sweet piece of hardware you have.
If you want a light recoil (but freaking LOUD), try Liberty HV Ammo in .38 Special in 50gr:
http://libertyammunition.com/product/civil-defense-38-special
Thanks! I may try that. But is a 50gr bullet too light for a defense round? At 1500fps maybe that makes up for it, but will it go through the perp the wall and into the next room?