There is a problem with Colossus. With center point set in PCS, the model is still acting like retail Colossus ingame. That means it's center point is set between main engines, in the rear part of the ship.
I suspect the center point was set like this to keep retail balance and missions performance, but it's rather annoying for Freders and IMHO doesn't look good. Before I import this model to Blender and fix the problem, which requires some boring work, I'd like to ask: Is there any other version of the Colossus, with correctly set center point? It would save me some work.