Reverse Rolling from the Center

This week's tip is from Protint ~
Reverse Rolling from the Center:

Used for rear windows.

Like reverse rolling from left to right this starts in the center of the window. I heard this from another installer. Peel off half of the rear window liner on the board and wet the film then cut the liner in half. Replace the cut liner on the film. Repeat for the right side. Then roll the film from both sides to the center so that you have two tubes. Pull the liner out from each side and fold around each tube. When you install it start in the center and roll from the center out both tubes at the same time.
The guy that I heard this from said that he heard it from a guy from China.