Of course they will all match! But that is ONLY if you use the World Origin 0,0,0 (Global... whatever it is called in your program) as the scale center point. You can export each part individually or all at once - so long as you use the same factor and the same origin, they will appear in Poser in EXACTLY the same relative position (provided that you do NOT use the "Scale" "Center" and "Place on Floor" options in the import dialog. Be sure that NOTHING is checked on that import panel and all should be fine. When you do that ALL data contained in the file - all relative dimensions and vertex positions and axis locations etc. are scaled proportionally and precisely by the same amount. In other words, think of it as scaling the entire UNIVERSE of the object rather than just the object itself or (God forgive) the parts themselves. Now the question is whether or not Poser respects the relative object axes that you have established - for example the axis of rotation for a door to open and close. In my experience, Poser has a tendency to reset object axes to their own center of gravity (center of bounding-box?) of each object as it is imported (I'm not absolutely positive about that though), so I don't bother any more setting rotation centers in my 3D app. I just bring in the model to Poser, select the parts and use the joint editor to position the center of rotation where I want it.