see info at the link below -

Here is a link that might be useful: loquats

Your 'Big Jim' is pretty much normal and on schedule. You should see some flower stalks and buds forming right about now. Your foliage looks nice and lush -- should be a nice crop for you next year.

Thanks for the input.
The last time it fruited I lost a branch due to the weight.

Here is a full view. It is six feet tall. I read the page suggested, and learned they can be alternate year bearing. That is a passiflora in the background and a tangerine beside it. Tight fit.