[Llyr]

Question, other than fluff are there any differences between the Septs? I know that with the Eldar the Craftworlds each have different special things (i.e. - Alaitoc having more Rangers than most, ect.). Is there anything like that for the Tau? I am interested in playing Ke'lshan because of there backstory but I'd be interested in any special rules that go along with them.

[Ka-No-Bushi]

Codex says: No.
It's just fluff, except when it comes to Farsights enclave.

[Llyr]

Ok, that's what I thought. So what about the Farsight Enclave?

[Ace cipher zer0]

The Farsight Enclaves are a series of planets over the Damocles Gulf founded by Commander Farsight. He is a renegade commander and will not obey any Imperial Tau authority. His army list is modified and is designed to be very battlesuit heavy, and nearly all other units (except FWs) are limited to 1 team per army, and without Kroot or Vespid.

While we're on the topic, how does Farsight get transport and supplies?

[Malcaor]

Many people figure there must be loyalist Tau that sympathize with farsight and slip him some gear. It is also probable they have their own factories, jsut not as many as the Empire has.