I've never seen any mention of the details of TF top bracing by Taylor other than that it is unique and specific to TF's. If you really need the details, I would call Taylor Customer Service and I'm sure they would hook you up with someone who could and would explain the differences to you.
I can tell you that my own BTO GAce TF (EIR/Engelmann) has an X-type bracing pattern from what I can see and feel...



Yeah, I know you can't see the bracing... but I just think my guitar is pretty!!