Nice galaxy Eric !
I haven't been out the back for quite a while now, I've been reconnecting with my musical side ( composing ).
What are your settings for auto guiding - EQ6 and software ? I became frustrated with my setup as I was only getting about same exposure lengths with XCM2000 as I was with 350D before trailing became a problem and your guiding is always spot on so I thought I'd ask .... might get me on the right track next time I venture out.
Cheers