Using 9PK for juggles isn't very good imo because Hitomi has better tools for launching her opponents (9K, 33P, 4P+K, 7K).
9PK doesn't launch very high and it's 2 high attacks thus makes it easy to counter (7H & 1H will avoid her 9PK).
When I use 9PK, I use it for a guaranteed force tech. 9PK...