Well, I dont think the MAF screen serves quite the same purpose since theres no bend there and it is not vaned. However, it does pose the question if vanes just inside the TB would not help out MAF readings. If so, you would not only get the accurate reading the MAF Screen offers without the restrictions that the screen presents.
Unfortunately I know of no reliable way in which to prove that theory outside of some method using smoke or something like that to be able to visually see the air flow.
