First of all this is an interesting disc, namely due to the groove track.
Well the grip on the Buzzz GT feels very comfortable and fits very nicely in the hand. When I am throwing I don't really notice the groove track, except for when I pick it up initially. At first I was torn on how I felt towards the disc. For it felt comfortably in my hand but then it would feel weird at the same time because I was holding a midrange and it wasn't flat on the top. I would go back and forth on this so many times. In the end I got used to it and now it isn't so weird, it feels good in my hand and I actually prefer it over my normal Buzzz.
Well funny fact, the majority of my throws at first I always ended up throwing it into the trees and as such I couldn't see how it flew. Fortunately that didn't remain constant and I was finally able to see how the Buzzz GT flies. It flies wonderfully. I was interested to see if it did fly like the Buzzz OS or not like previously mentioned, I found that it does not fly like that. I don't have one so I could be wrong; however, I think it flies just like the Buzzz, which I do own. My Buzzz GT is a max weight so it is slightlly, just slightly more stable than my normal Buzzz (which isn't max weight).
With the Buzzz GT I am able to shape it fairly well. I can get slight to sharp anhyzers as well as sharp hyzer throws. Its versatility is pretty awesome, that's why I love the Buzzz so much. I can even get a pretty solid straight line with a healthy fade at the end. With all of this it is a very dependable disc and it is easy to throw however which way you want. I have even used it as a roller with decent success.
If you haven't felt the CryZtal plastic before, it has an awesome feel to it. Its very sturdy too, as I have mentioned before, at first my Buzzz GT had an obsession with hitting trees. There aren't many marks on my discs, very few spaces are rough on the rim of the Buzzz GT. The plastic holds up well.
Overall the Buzzz GT is awesome, I actually prefer it over the Buzzz flat top. It flies pretty true to the flight path provided by infinite. On top of that I am able to shape it fairly easily. It is dependable and reliable. The groove track does take some getting used to, once I did, I don't notice it except for when I pick it up. The Buzzz GT is replacing my Buzzz in my bag.