Ok, I went to the site and read the directions but I am still a little lost about one thing and I want to make sure I get it right. For the Tower112 there are 2 different shims, 1 neoprene and 1 plastic film, but the instructions just say to align the "H insulator" with the screw holes on the back of the mobo. Which one should I be using? My gut tells me it should be the neoprene first, the sheet second and then the metal bracket but I don't want to play with this. Which way should it be?