I have recently watched the anime for Tsubasa resorvoir chronicles and due to the fact that it is incomplete I would like to read the manga now. I however don't want to reread parts which I have seen already.
what would be a good chapter/volume to start on?

Thanks.

Somewhere around chapter 105-6? Thats where they are in the Library (ep. 41), after that in anime its only fillers and in manga past ch. 107 the story continues like the OVA Tsubasa Tokyo Revelations.

Thanks again.