Ethan - can you chime in on FGM's Big Red?
It's too bad that USDA germplasm project only has KM for a red SA, when it sounds like it is less desirable than others that are out there.
A member here generously gave me some sticks of various SA that I'm really hoping will take. I have a very strange microclimate, but I believe the weather is finally becoming favorable for my anoonas. (The Cherimoyas have yet to push a full new leaf, and the mangoes are just starting to push flower. In contrast, there has been lots of activity on the stone fruits and citrus).