Last year I found Honey Royale at Stop and Shop (they often have the name stamped on the box). Most were OK, but a bit bland at ~16 brix. I think one or two of them was in the 20-22 brix range and those were pretty good. I’m sure 26 would be great.
I’m not sure if I like prune plums so much simply because of the high brix (something not often found in the store outside cherries and occasionally nectarines/mangos/lychees).
I’ve had them several times and thought that they were very good, but wouldn’t put them on a pedestal. Valor, President, and Empress are just as good and maybe a bit better. And maybe a bit larger too, based on the ones I’ve seen.
Here’s a pic of some President and Empress from earlier this summer:
This is the first year I’ve sampled a mango I really liked. The (huge) Keitt from Mexico are so tasty that I’ve been giving other mangoes another chance.