Are these irregularities between the bars due to your pixel snapping? Is there anyway of dealing with this aside from making everything larger?

You guys are the best! Entirely solved the issue. Maybe something to keep in mind for future releases for those of us who are outputing vector art? I've definitely had some trouble with pixel snapping in other places, its frustrating to be limited by pixels when the output doesn't need to be.  Maybe something like:
NCartesianChart chart = (NCartesianChart)chartControl.Charts[0];
chart.EnablePixelSnapping = false;

Thanks again for being so responsive!

Thanks Rich,
Regarding the suggestion - it will be difficult to intercept all pixel snapping that occurs currently in Nevron Chart for .NET, however we'll have this feature in mind when we continue to develop the cross platform edition of the control. Thanks again .

Best Regards,
Nevron Support Team