I am having the same problem: printing to adobe pdf results in a splat (not the case at all in skp5). So i try the export filter. It seems to work fine for simple shapes but not for real models. I have tried to print at smaller scales even and the program just sits there unresponsive. Skp5 was a wiz at this; no waiting, no hitches. PLEASE fix this - i rely on this for my job and am now feeling that i should not have upgraded to 6.