I'm afraid I don't have the expertise to answer your question. Just here to find some help on Q3D if possible. Looks like you are doing quite a bit with Q3D and I'm just trying to start with loop inductance calculations on power modules. I was wondering if you have any supporting documents for beginners in Q3D. If you do can you please share with me here or on this post ( I would really appreciate any help. I have found Q3D materials to be very scarce compared to other domains of ANSYS. 

Sorry again since this is not an answer to your queries. Hope you find a solution soon.