I don't have a Sbach 3D...yet.
I do have a couple hundred flights on my 3Sbach/5043.
Had to add a cf rod to the horizontal stab to stop the high speed flutter.
Trust me on this one...
WOT snaps are almost quicker than the eye!
I've caught myself many times, checking to see if the wings were still attached.
These small planes can handle very violent stuff.
I love over-powered UMX planes!!