One old feature that has neve been fixed is that Boeings 727-100 doesn´t share the same instrument panel with the B727-200 as featured in CS models. They had the same panel of the B-707. The glareshield of the -100 is the same of the 707 with fire-handle 1 taken out and of course only 3 engines. For the sake of reality CS could fix this feature. I think it may be a very easy task. Let´s wait for what CS says.