AutoCAD Inventor :: Custom Content Center And Frame Generator BOM

I am using a student version of Inventor 2012 to design the FSAE Chassis for our University team this year. I was not able to find suitable geometry for the required tubing to make the chassis. So I found a guide on setting up a Custom Content Center and publishing parts. I have followed that. The Chassis has turned out great but now I am trying to draw it up and the BOM is not populating as desired.

A Summary:

-Custom Project file with Read / Write Library added.

-Custom tubing geometry created and published to the Library.

-Chassis constructed using standard Frame Generator techniques.

Previously I had the chassis modelled using standard Content Center parts and the BOM would populate with the individual tubes in the drawing environment. Now with the custom tubes the BOM calls up each of the individual tubing sizes, ONCE only and has large quantities. The automatic "Measure" Column is also populated with "*Varies*".

In the Frame Generator wizard each tubing size has come up as it's own "Family".I believe this is because I have published the different part sizes individually. I am guessing I should have published only the one active part but with variable geometry selectable in the "Size" drop down?

I have tried forcing the assembly into the "All Levels" view with the Bill of Materials pop-up in the Assembly environment, but even this is not populating correctly.Something else I have noticed is the individual tubes are using a different naming convention in the model tree.