Congrats on the new 'Vert.

I run a ragtop specialty/auto top shop. Local Ford dealer put a new left over 2011 GT conv. w/2500 miles into my shop last week with water leak problems.

Found that the rear defrost glass was already delaminating from the convertible topping(top pullings away).

This might be something you should watch closely. It is rather common after the car gets to be 5 or 6 years old. Never seen it on a new 'Stang.

 

My '08 vert (cloth top) hasn't leaked a drop since I bought it last summer, and I've driven it in some pretty nasty weather. But it did have the problem with the cloth just beginning to pull away from the window in few places. Even though it never leaked, I fixed it by using Rhino Glue, and it's been holding ever since.