I was in a 2017 FR A frame today, and gave it a look over.
First thing I noticed was that the bubble windows were different from the windows on
my 2013 model. Mine had the "caulk tape" that is so infamous, and which I replaced with Eternabond.
The 2017 model windows are completely one-piece, meaning that the side flanges are the same "plastic"
as the body of the window. No tape or caulk is visible anywhere. There has to be
some sort of sealant under the side flanges, but I did not have a chance to find out how they are sealing
the new design windows.
Hopefully they are a better design, and also function better for sealing purposes.