Thank you Michael for the detailed reply. +1 for grouping.

Again I have to say the more I use MoI the more I appreciate the way it works. It's really elegant.

Thanks also for the comment about OBJ, I was doubting whether it could support parent-child relationships.

If anyone out there has suggestions for a good MoI > WebGL workflow, any advice is appreciated. :-)

Cheers,
-p