Has any heard? today CBS D announced that season 4 and 6 will be done by another special effects house! So lets hope this special effects house does a better job then the people who did season 2 did.
Which surprises me, regarding special effects. Since CBS-D did such outstanding work, you might think that live-only footage only goes to another house, but everything regarding effects stays at CBS-D. Plus this forces every house doing the live-shots to work closely with CBS-D, thus the project is always under quality control.