HSP ULLA
HSP 2001 CVRT trial was mine that had the transfer release failure. Wasn't there also some contention on the HSP Mk2 failure to release drills in that the ALM might be required to dress aft of a possible live load?
Looking at logbooks - I flew 22 ULLA sorties with just the one failure already mentioned. No one else had an ULLA maldrop during the period. All double ULLA. I understand that triple ULLA was more prone to problems, mainly on impact, before my time.