Thin feature preview

The thin feature limitations being lifted are nice. About time. Fewer workarounds.

One problem I'm seeing is that if I draw concentric circles and make a thin feature, the preview doesn't get the "thinness" right. They display as what looks like 2 non-thin intersecting extruded circles. I'm on b2. Anyone else seeing this?

SolidworksSolidworks 2013 Beta