Monroville said:
The bottom line is that it IS Ady's edit. All anyone can do is argue their point logically or illogically. There are plenty of extreme close-ups of the TIEs in action throughout ANH (specifically during the Falcon escape battle) and not once do they even remotely appear bluish in any way, shape or form. To do it for EMPIRE is one thing, as that is how they originally appeared. Considering that even Lucas has never blued the TIEs in any incarnation of ANH should say something.

not blue
In the end, this will probably be a good thing, being that it will give me one more reason to learn After Effects and other programs so I can re-color correct the TIEs to grey.
The TIEs appeared as blue in many shots in ANH. As we know, the GOUT is pretty faded and desaturated, losing a lot of the blue tints. You can't use this as a reference for colour. but even with the fading you can see shots where the TIEs are blue tinted, even in the scene you say they never appear bluish in any way shape or form

Now these were just 2 examples
The 1997 SE is supposed to be the closest for colour reference to how ANH originally looked (before the tinting added in 2004). Now there are many times that the TIEs are clearly blue tinted

And the model you posted the pic of was sold at auction in 2008 and the pic of the model used for the brochure shows that it wasn't as white as it looked in the bluescreen photo you posted:

Now the TIEs changed from grey to blue even in the original. They were never grey 100% of the time
Monroville said:
Watch Ady's latest clip; in some cases, his TIEs are bluer than the originals (pause during the first fly-bys with the 3 SDs).
Now that's just not true and i posted links to screenshot comparisons a few pages back that proves that isn't the case.It may look that way in the youtube video because the blue may stand out more because of the tint added to the whole shot in 2004 coloured the stardestroyers in the background
http://originaltrilogy.com/forum/topic.cfm/STAR-WARS-EP-V-REVISITED-EDITION-ADYWAN-UPDATED-CHANGES-LIST-NOW-AVAILABLE/post/565636/#TopicPost565636
Well it looks like ANH had the Great Flipper debate, ESB has the Great Blue TIE debate and i hate to think what the Great Debate fro ROTJ will be. ;)