I understand a Brain Bag backpack from Tom Bihn can be ordered with annex clips to accommodate a Tom Bihn Vertical Brain Cell protective laptop case. I also understand a Brain Bag can be ordered with an extra set of annex clips so that a Brain Cell can be clipped into either or both of the Brain Bag's main compartments. Is this all still correct?
I also understand that a Brain Bag can be ordered with a Cache. Can a Brain Bag be configured to offer a proper "Cache with Rails" setup? If so, can it be configured to work in both of the main compartments, as with the Brain Cells with annex clips?
Can a Brain Cell be configured so that both main compartments of the backpack are configured to work with either the Brain Cell with annex clips and/or the Cache-with-rails?
Would either of these annex/rails hardware configurations interfere with the installation of an optional Camera Insert/Outsert?
Thanks in advance for your answers.