if u have scene clean up tools or scripts that would be helpful.
i use koshigaya studio tools and mjpolytools and they always leave funky nodes on the geometry, even after del hist,
and scene optimizing tool in maya does not clean them.
so at work we endlessly export as loads of models as obj and re import them.
i know there are some clean up scripts outthere, but id have to spend time to check them out, if u have good ones that gets rid of dead nodes post them or email me.