Dear Scott
I assume this: there is only one active phrase catalog, This phrase catalog must be used for any EHS activity. IN this one catalog you need to define phrase groups or DG filling will not work. As you can not use the saem phrase group twice (for active and passive catalog) I assume that you must use CUST (which will be the active one)7T.
C.B.
PS: DON'T CHANGE EVER IN YOUR LIFETIME the "active" catalog (siwtch a different one as active and do the active passive) THIS IS NOT A GOOD CHOICE !