SECURITY GROUP 3 •  The Group 3 Principal Distribution Amount will be allocated in the following order of priority: 1.  To E and EO, pro rata, until retired 2.  Concurrently: a.  8.33334% to PO, until retired b.  91.66666% to EB, EC and ED, in that order, until retired Scheduled Principal Balances:    The Scheduled Principal Balances or Aggregate Scheduled Principal Balances for  the  Classes listed below are included  in Schedule II  to this Supplement.  They  were calculated using, among other things, the following Structuring Ranges: Class Structuring Ranges PAC Classes PA and PF (in the aggregate) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250% PSA through 525% PSA PAC I Classes PD, PJ and PK (in the aggregate). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100% PSA through 400% PSA PAC II Class CA  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .                   135% PSA through 400% PSA S-7