10.5 degrees.. Thanks for doing that work. I just went out and checked the angles.
Above the drivers head, the roof slopes down at 4.5 degs. But move towards the back seat, and the roof becomes flat. It stays flat (zero slope) all the way back to the rear hatch.
The good news is, the hatch lid has some down slope.
I checked my coro angle on each side (at the pulled-down edges) and they are almost dead on.
10.5 deg on the left and 11 deg on the right. (sloppy tape job)..
The big rise in the center of the top panel needs work, since it's only 4.5 deg.
I'll have to see what I can do to flatten it out some.