I haven't actually used this method to cut a pocket and without the ability to set a start point in the Designer I really don't know. In most cases I don't think it really makes any difference. A start point can be set in Aspire but I don't think it is transferred in the .dxf. The offset of the bit will also have to be dealt with to get an exact size. As you stated earlier, the drill tool is really a better choice. This was just an experiment.