I know that the Z-team is aware of this issue and working on it, but here are some more examples that I hope may help with their troubleshooting and slicer development.
Other than these seams, this print is about the most perfect thing I’ve ever seen come out of a 3D printer.
Pretty pics here http://zortrax.com/forum/viewtopic.php?pid=2470#p2470 and here http://www.thingiverse.com/make:66111.