Not only has the author spend 101 hours on this model, he also took the dangerous approach of testing stalls and spins too, showing the readers how convincing the flight model on that little plane was rendered.So, while not avoiding any risk, I think Peter showed how it's done and also gave a nice perspective on that not cheap but well made bird. The only thing I (personally) can't agree in full is the 'Not too much performance impact' statement. But this of course is system and setting based and just doesn't reflect my experience, although the plane stays in the playable range of course. Just in case somebody missed that comprehensive and detailed read, go for it!