What do you think that tree is if not achachairu, Mike?
Soursop is supposedly Homestead variety, but it was from TopTropicals, who are notorious for mislabeling. Lots of flowers and small fruit now. Its very good, with a little sour. Has some fiber, but not bad.
I agree on Rollinia. Picked early to try and get firmer flesh, but suffered flavor-wise.
Still learning star apples. Need to graft some goodies on that one.