Yea, I need to dive into the custom programming and see if I can do something to keep it from rubbing. This, I think, is the same issue that I'm having. And yes, I'm doing the Z hop, and Z retraction when the head needs to move to another location. Takes longer, but seems to make it do a little better.
Did you see the new 3D Printer section? If you want, I can move your threads in there. Just reply in the ones you want moved, and I will get them moved.