At least one SSI shop I know of does SSI AOW in just fives dives to do four specialty courses. And the dives do not hace to be done with an instructor. I fail to see how doing five dives to get an SSI AOW card is better than fives dives with a PADI instructor to get a PADI AOW card.
as per the ssi 2014 standards:
8. Training Requirements: For Specialty training, the
number of Specialty training dives are left to the
Instructor´s discretion, based on student needs,
student ability and water conditions.
BUT.......
13. Credits: Each Specialty program, in order to qualify
towards Specialty, Advanced Open Water or Master
Diver Ratings, is to include at least two open water
specialty training dives. Non-diving Specialty may
not count towards Specialty, Advanced Open Water
or Master Diver ratings, if no dives were conducted
for certification.
AND.....
12. Use of Certified Assistants: An active Instructor
has the option to delegate responsibility for direct
supervision to a Certified Assistant for the purpose of
escorting students during all the dives except Deep
Dives. The Instructor has the responsibility of indirect
supervision during the program. The maximum
number of students a Certified Assistant can escort is
2.
are you sure you are not confusing the advanced adventurer cert with the advanced open water cert??