Collada custom bounds not working

I have a scene with a few meshes in them that are spread out (not at 000). What I would like to do is a bounding box around some of these meshes, expor them, and then use the center model command during the import process (so that the meshes origion is at the center of the bounds or 000 and not offset)

The problem is that if the bounds is anywhere but 000 I get all sorts of strange translation issues. The bounds or the meshes move into strange locations, and the model also flips and I have to manually specify the up axis.


Does anyone have any idea what's going on? The docuemenation specifies that you CAN specify a custom bounds so long as it as at the root level which mine is.