I believe Yoda mentioned before that closed-closed is recommended for hitter at advance level. Could you tell us why you are using a square open stance. I know it related to the person but is there any guides why someone will use square square, square open etc.. Any advantages on square open?
Yoda does not recommend the closed-closed variation for hitting. I have talked to him, and he will comment further in this thread.
Regarding my personal square-open combination, the TGM player can change any stroke component to create a different result. Because of my open stance (10-5-B), I automatically create a Delayed Pivot (10-12-C). In other words, I have created a restricted backstroke (relative to the Free Turn of 10-12-A) and a free follow-through.
It gives me a very robotic feel, as if my legs are stuck in concrete. I almost have a zero pivot feel.