It's the SPD's that you say you can't get your toe out position with?
I'm having trouble trying to figure out why you can't. If I were to put mine in the angle that puts my toe pointed outward, then I'd be hitting the crank arm with my heel every rotation of the crank.
Though I'm also wondering why that doesn't happen with the Speedplays, unless that Speedplay pedal give you a wider stance.