Looking in the trash can for mangos eaten a few hours ago... Too many as a sugar high now and a few were other varieties... I did find 3 sweet tarts with 2 very small and I usually prefer them yellow to insure sweetness is intense enough for my satisfaction on the small drops due to short water or just too many on tree. I find no problem in eating the small drops and even if they start to dehydrate I still like them but usually less sweet with a tang taste.
Also a pic of 2 more small sweet tart drops. I will let the green one ripen toward yellow and the other I will eat tomorrow. I have no problem eating even smaller drops. i just make sure they are yellow with enough sugars.
People that have thousands of mangos probably don't eat these drops & I understand. If a large normal sweet tart then it would retain the sweet and tart a little longer. I doubt if they would ever try to eat a sweet tart with black spots to find out what the orange tastes like at that point as my taste buds detect no tart when way over ripe... But, If you had thousands, no need to ever try it at this over ripe stage & I understand...
I often eat withered small sweet tarts dropped early and as long as all yellow on the skin, mine have tasted like tang IMO when very very very small size drops.