Hi folks I have both of the above speedlites and use them on my Oly EP1, Lumix L1, and Lumix GH1. I'd like to grab a camera shoe cable (whatever the cable is called that allows you to extend your speedlite by hand through a soft box). Before I go out and buy one, I was curious of compatibility among the cables..No brand issue here now, but what happens when I use a Canon cable in this system? Any thoughts? Thanks!