6.  To ZB, until retired 7.  Sequentially, to DA, DB, DC, CB, CD, CW, CV and CZ, in that order, without regard to their Aggregate Scheduled Principal Balances, until retired •  For  any  Distribution  Date,  the  "ZB  Jump  Percentage"  means  the  percentage  (not greater than 99%) derived by dividing (a) the excess, if any, of the 301% PSA Group 1 Balance over the remaining Principal Balance of the Group 1 Trust Assets, after giving effect to their reduction on that Distribution Date by (b) the excess of the 301% PSA Group 1 Balance over the 434% PSA Group 1 Balance SECURITY GROUP 2 The Group 2 Principal Distribution Amount and the PZ and ZA Accrual Amounts will be allocated as follows: •  The PZ Accrual Amount in the following order of priority: 1.  Concurrently, to PA and PF, pro rata, until retired 2.  To PZ, until retired •  The ZA Accrual Amount in the following order of priority: 1.  To the PAC Classes, until reduced to their Aggregate Scheduled Principal Balance for that Distribution Date, in the following order of priority: a.  Concurrently, to PA and PF, pro rata, until retired b.  To PZ, until retired 2.  To ZA, until retired •  The Group 2 Principal Distribution Amount, concurrently, as follows:: 1.  8.3333333333% to FA, until retired 2.  91.6666666667% in the following order of priority: a.  To  the  PAC  Classes,  until  reduced  to  their  Aggregate  Scheduled  Principal Balances for that Distribution Date, in the following order of priority: i.   Concurrently, to PA and PF, pro rata, until retired ii.  To PZ, until retired b.  To ZA, until retired c.  To the PAC Classes, in the manner and order of priority described in Step 2.a, but  without  regard  to  their  Aggregate  Scheduled  Principal  Balances,  until retired SECURITY GROUP 3 A percentage of the Group 3 Principal Distribution Amount will be applied to the Trustee Fee, and the remainder of the Group 3 Principal Distribution Amount (the "Group 3 Adjusted B-13