Setting next ticket number to '900000'

Since we regularly use the 'Return by Ticket Number' method when helping patrons with ticket exchanges by phone I would like for all season ticket ticket numbers to start with the digit '9'.  I know that the ticket number increment is held in the T_NEXT_ID table.  So my idea is to simply update the Ticket Number value in that table by

UPDATE T_NEXT_ID set t_next_id.next_id = '900000' where type = 'TN' and description = 'Ticket Number'

But I don't want to cause a tear in the ticket-time continuum.  So I'm asking, assuming we don't have any customizations reliant on this table and the AP_GET_NEXTID_function issuing consecutive ticket numbers, can we update the table as needed?

Thanks all