WHOOPS, posted this in the wrong place.. I've updated in Paid Positions HERE: http://boards.polycount.net/showflat.php?Cat=0&Number=16679&an=0&page=0#16679
Damn, this took me a while but it loses a lot of impact on size reduction http://boards.polycount.net/showflat.php?Cat=0&Number=121020&an=0&page=0#Post121020
I believe this happens everytime you add or maybe even renaem an object to the FBX. New object transformations will be set to 0, 0, 0 while old are updated with the currently used in toolbag.
We were just talking about this over in P&P, Rorshach and others had some good info. http://boards.polycount.net/showflat.php?Cat=0&Number=91531&an=0&page=0
most of it landed right here : http://boards.polycount.net/showflat.php?Cat=0&Number=31713&an=0&page=0#31713 i beat ya to it. tag- mutedgrunt , be sure to rock ya later