My disclaimer, I have a lot of trouble with cutter comp too. That said, the Dynapath manual I have (under the G41 section) says that the diameter offset will only occurr in the selected plane (ie G17). The examples of cutter comp programs in the appendix set the plane with G17. Perhaps if you add a G17 line, that would help. I also use Dolphin as my cad/cam system and am currently using the post for Dynapath on their website and it does cause me to do a lot of manual editing of the code it outputs to get it to work. So if you get a working post I would be interested in seeing it.