Just FYI - I just bought another one of these for my new MBP, and the bottom piece did not have cutouts for the screws. I've never had a set like that before, so I contacted Wrapsol customer service. They told me they've changed their design so the bottom doesn't have cutouts.
I find that really dumb, as it means any time you want to upgrade your RAM, HDD, etc., the film gets ruined. I can't recommend Wrapsol unless you do all your upgrades before installing it and never plan on opening again. Then you need to hope you never have to take your MBP into Apple for repairs.
Really dumb change, in my opinion. Wrapsol was one of my favorite products.