I was standing in back of a Saito 91 about two years ago and I thought just by the sound that it was to lean and about that time it slung the spinner and the prop. Part of the spinner struck me on the upper right side of my chest and it felt like someone gave me a pretty good punch. It had me doubled over for a few seconds to say the least...I felt like someone should at least come over and issue me a standing eight count.....