The last two 6 and 6 captains left during the last month. Don't believe the Flight mag ad which offers 6 and 6. The national GM won't allow any more 6 and 6 positions. For touring pilots it's 8 and 4 only, unless you want to go to Iran which is 4 and 4.
Of course, if you happen to be of the Islamic faith you just might be able to get whatever you want ;-)