I think I have my FX to AUX answer:
[Invalid or Expired Link Removed]
If you are on firmware version 1.50a +: You can control the send level of the FX channels by using Aux Flip mode. To use this mode, select the Aux you want to use and press the Mix button twice which will switch the first six meters and encoders to become the aux-send level controls for the :
1) Main FireWire Return
2) Analog Tape In
3) Aux Input A
4) Aux Input B
5) FXA
6) FXB
[Invalid or Expired Link Removed]
If you are on firmware version 1.50a +: You can control the send level of the FX channels by using Aux Flip mode. To use this mode, select the Aux you want to use and press the Mix button twice which will switch the first six meters and encoders to become the aux-send level controls for the :
1) Main FireWire Return
2) Analog Tape In
3) Aux Input A
4) Aux Input B
5) FXA
6) FXB