i thought this article was pretty good and i think he made some very good points about how in most real-life defensive shooting situations, most people use only hand to fire their weapon. he advocates training with one hand if you're training for defensive purposes. I know just from the IDPA match last night alone that i need A LOT more practice at strong (and weak) hand shooting.
http://www.gunsandammomag.com/tactical/hand_091407/index.htmlSM