That makes sense. Cramming requirements for multiple certs in the same dive waters things down even further than what it is already. Part (most?) of the value of doing certs is the dives they require.Padi told them that for advance open water they were aloud to do multiple tasks on one dive to qualify for AOW, but for the specialty dives each dive had to be a task for each one of the specialty qualificationt they had to have there own dives.