<hijack> Homeboy, have you ever thought about doing a "Frankenstein" on the Pro pedals to get a wider stance on them? </hijack>
Maybe you should ask Larry Craig about that!   

No, I haven't.  I've been using my pedals for so many years that I've just gotten used to the narrower stance.  I saw a mod that did that once.  He made some angle brackets and mounted the pedals on the brackets.  I don't know how well it worked.  Looked a bit strange though.
I was playing around with making some force-feedback pedals one time.  Kinda interesting.  Like so many things, I got distracted and never did much with that.