Jeff,
The quad arms are placed to maintain CG with the standard wing. I try to design my QuadPlanes so that I can easily change to a spare normal wing and use APM Plane when a landing strip is available.
I think I will try some struts, first only on the back quad motors to the fuselage and then near the front quad motors, only if needed. In this manner, I can still easily connect/disconnect the QuadPlane wing or use the normal wing.
Time will tell…thanks for the help!