Apparently so. Guess im going to need to work on my Kote and Riichi before I can start using itsuuA combos. Im pretty basic with my combos right now. The main combos I use are:
5B 5C 3C itsuuc JB jc JBC Hatsu Chun
5B 2C itsuuA haku hatsu chun
Staffless: 5B 5C 2C 6C 2B 2C JB jc.BC hatsu Chun
usually they end up in the corner after any of those combos. I need to work on my corner lockdown as well.