I've been reading up on some different cruiser builds, and I've come across an vague concept called "Aux2Bat" layout.
1) How is it set up?
2) What are the advantages/disadvantages compared to standard tanking setup/tactics?
3) My main cruiser is the Galaxy-X (reluctantly being replaced by an Excelsior-R in the next ship sale, then the Fleet Excelsior-R immediately after that). How can I properly set up the Aux2Bat layout on that ship, and what BOFF/DOFF abilities do I need?