RE: Thunder Tiger F8F Bearcat ARF - Navy Version
The standard pushrod seems plenty strong to me. It's much less flexible than a CF rod. I've done a bunch of high speed dives without any flutter. But then again, my F8F is electric so it may not be as fast as a glow model and certainly doesn't have the vibration.
Weak servos and sloppy/incorrect linkages can cause flutter just as much as weak stabs.
cublover, did you have to add much weight in the nose to balance the model? What's your RTF weight?