Great information on this thread. Thanks all!
But then the key question becomes: how do people with 3d planes mitigating the very real risk of destroying their engines? Is there maneuvers that should clearly be avoided or only be done within some parameters (ex: low speed)? Where is the limit in practice? It appears that the line is blurry and to make things worse, we aren't in the plane to feel it.
V Speak vario pro is interesting and I could setup some warnings for over acceleration on each axis. I'll definitely try that.