[Rezman]

You should be running WC to all devices except the ADAT I/O's which require Superclock (256xWC). The ADAT I/O's can recieve 256xWC from the Big Bens WC outputs 5 & 6. This is set from the front panel of the Big Ben.(Check Pages 10 & 11 of the User Guide! )
Each device should be cabled directly from the Big Ben with no daisy-chaining of devices. This will ensure the integrity of the clock is maintained.
Lastly, set your Pro Tools HW Setup to Ext Clock for each interface.
Have fun, it's a great unit