I'm looking for a way that I can set my objects transform axis to the orientation of its bounding region. What would be the best way to channel its Bounds Orientation into its Pivot Rotate on the subsequent Transform Node?

In vex you can use cracktransform() to extract a vector rotation attribute in degrees from the xform matrix generated by your bound sop and use the result as your pivot rotation.

Thanks for the suggestion. I ended up pretty much getting the same setup using an attribute VOP off the bounds. Crisis averted!