Manji Gamae is seen in lots of Shotokan Kata, most of them having different stances and movements structured around it.
I've seen Funakoshi refer to it as Sakutsuchi (Hammer Upside Down). The technique is also mentioned in McCarthy Sensei's Bubishi as one of the 48 Monk Fist Boxing techniques.
Since it's such a frequent inclusion within core Kata of various systems and it has differing set ups and post technique moves (Jion particularly) what's everyones opinion on it?
I tend to see it in Heian Godan as reaching down striking grion area and then lifting upside down and throwing, however not sure if this common, nor how the techniques in jion proceeding/post Manji Gamae in Jion are.