I've gone back to trying to get the MAKE Magazine Torture Test object to print cleanly. I'm getting pretty close now --- my only problem is that Creator puts the X/Y rapid at the start of a new layer BEFORE the Z-increment to the next layer, and I keep knocking over the little end of the arch. (On the plus side, S3D did fix the sequence for Z-lift and retract when doing a rapid with those options enabled in 1.1.5, which helps a lot!) But when I enabled the G2/G3 arc option, it REALLY cleaned up the cylindrical posts nicely. The part you're printing seems to have lots of arcs, and they're looking pretty much like my columns did, so if you're running with the G2/G3 arc commands option unchecked, give it a try checked. The Marlin firmware on my M2 (printer shipped Feb. 2013) supports it. No guarantees from me for your setup, of course, but worth a shot!
I'm not at my printing machine right now, so I can't look up the coast and retract I'm using, but they're both pretty small, maybe half a mm - ish.