I planted both of them side by side. After 3 years, EG has run rampant. Jewel has been squeezed by its neighbor.
@subdood_ky_z6b best described the differences in shape of EG and Jewel. That has helped recognize how far EG has ventured into Jewel’s side. It’s far.
As for taste, I can’t tell anymore because we had a lot of rain last year when Jewel tasted better. We had a lot of rain this year, too, but between the two rain-soaked berries, EG tasted better (but still diluted by rain).
I put in Mara de bois this spring. Its first year fruit had nothing to write home about. I assume rain had a lot to do with it.