Steven, the green sapote looks very different from mamey, but only on the exterior. Green sapote is not a very good name as the fruit will turn totally orange when fully ripe. Orange sapote would have been a better name in my opinion. Then again the people that name fruits seem to be color blind, as the real green sapote (Casimiroa) got named white sapote instead!
Harry and Joe, i didn't give a detailed comparison as i had intended to do because the comparison, as it turned out, was a bit unfair; the green sapotes had been refrigerated for a couple days and the pantin was at room temperature. Also i noticed that the 2 green sapote fruits tasted different even though they were from the same tree (one had a bit of an almond taste and the other didn't). So next time i will get a lot more fruits of both the green sapote and the mamey to compare, i think that will be a more realistic comparison. But i can tell you this right now, in a blind taste test i would think any of you would be hard pressed to tell the difference between this green sapote and any superior mamey cultivar. The differences are very subtle. The main difference i noticed was of texture, the green sapotes seemed to be more moist, more juicy. The pantin seemed to have a bit more complex taste with just a tiny bit of tartness not in the GS, but not sure because of refrigeration difference mentioned above. So stay tuned and will try to give better, more impartial comparisons. Thanks for the compliment Harry. Photography has been a hobby of mine a lot longer than gardening. Now with the advent of digital photography it's much easier and cheaper to take good photos. You can take a lot of digital photos until you get the effect you want, without all the expenses and waiting that film photography entailed.
JF, congratulations, those are definitely flowers emerging on your GS. Keep us posted.
Rob, yes i think the Pantins here always turn out that color, but haven't compared many different fruits. They all come from only one farm here that is the only one with commercial planting of mameys. We only have Pantins and Maganas here.
Oscar