Redemption is U class.
Unless you have information from inside CX, the maximum availability shown should be J9 C9 D9 I9, i.e., 9. You should only see unoccupied seats, which may not always be the number of unsold seats available. They usually keep seats available for last minute ticketing. June 8 ex-US West Coast is start of peak travel season. You may have a better chance if your waitlist in for an upgrade. If for full redemption, it is difficult to tell.