I think puppies just did you the favor of killing themselves...from the shear evilness that is that firearm. Menino just had a bowel reconstructive surgery, Deval's outtie just became an innie, and Coakley just had to shave her beard...twice in one day!!!
Gotta drill and do other ugliness to the receiver to do the paddle mag release, from everything I've seen. I just can't bear the thought of taking a drill to this bazillion dollar gun.
I'd REALLY like the paddle release though, if there was a way to do it without permanent alterations.