Ok, I have to admit that your description other than the part I underlined matches my experiance. My Tensor is straight if I throw it hard, but the fade at the end is very pronounced. If I sounded like the disc flys a similar pattern to a FAF Firebird or XXX then I came off wrong. It's definately a straight flight with a healthy fade at the end. What I was trying to convey is that if I throw the Tensor and Buzzz OS on the same starting line the Tensor (for me at least) seems to finish shorter and further left. The Buzzz OS seems to be about 20' longer and slightly straighter. Of course my sample size with it is smaller, and consists mainly of throwing it as a second shot after my Tensor or a Buzzz, so maybe I'm off base.
Edit: Either way I love this disc and it's got a home in my bag for the time being.