Ok, sounds like similar experience eating white sapote as me. I had Suebelle and Vernon for a while and had some frutis but they were small. I had these two varieties in a small 5-10 gallon pot for a while so they did not grow much but do get flowers/fruits each year. I thought the Vernon tasted better. I did receive some McDill fruits 7 yrs ago and it was the best of these three fruits I tasted. I ended up growing the seeds and now have 3 larger seedling trees, the largest tree was 20 ft tall and is my multi-grafted seedling tree.