If it actually tasted like loquat it might prove popular with the many cooler climate people who can’t get their loquat trees to set fruit due to frost damage (since they bloom over winter).
I just looked up ‘Butterball’ on pomiferous and apparently it’s a seedling of Malus xzumi. They also say the fruit is the size of a hazelnut, and a different website was more precise in saying they average 2-3cm in diameter. I guess my eyes tricked me. It would be about the same size as the fruit on my crabapple. Website after website is giving the impression that they’re really more for making jelly than fresh eating. I wonder if maybe it just tastes better for fresh eating in certain climates (like yours)…
They are about an inch. They flavor is great; they are just small. Jelly would probably be the most practical use other than Ornamental and wildlife
The flavor of fat boy is very good and unique. If it was crossed with the Clarks crabapple and the result was large orange fruit on 10% of the seedlings within 10 years we could see an amazing result.