"Posioning the speakers with no toe in definitely widens the soundstage but at the expense of imaging "
This tends to be my experience, as well. When you try messing around with toe-in, do this: Take a piece of paper, draw an arc, and measure 1/4" increments on it. Tape it to the floor and use it to ascertain the proper toe-in for the sound you're after. Many times have I wondered while adjusting my speakers, "Where was that [toe-in] place where I heard the guitar over there?!"