I bought one of these Vibram Traks two days ago. I think it flies a lot like a TL. What is odd is that it turns over when I flick/sidearm the disc. Yet I can't seem to get a lot of power on it back hand. I think I could have done well will getting a slightly lighter disc than I normally throw. The plastic feels very dense, and i am wondering if that is why it doesn't have much glide. HOWEVER, I will say this disc is very stable and goes straight where I throw it and that is very valuable to me.
I carry a 170g Champion Teebird, a 175g Teebird and a 171g TL, and although this disc is very similar to all of them, I think there is a very useful place in my bag for this disc.
One last note. The disc tends to make an air bounce at the end of its flight, right before it fades, which is kind of odd.