Dust off this old post with a quick update.
Soursop (A. Muricata) on cherimoya (A. Cherimola), still growing nicely.
A. Senegalensis on A. Cherimola, this is the first year it fruited. The mother plant has fruited in the past but this is the first time on Cherimola.
I working on another graft, hopefully I can report back in a few weeks!