I met him last year, he was extremely busy in his work as a chief of two stone-pits (quarries) in a big construction company. Barely finds time to keep his citrus collection alive.
And since the citrusy.cz forum is closed, He is not sharing his experiences publicly anymore.
But this is the fresh article in the local newspaper.
http://www.5plus2.cz/56341
the title is: "Orange? - not for me, I prefer to eat piece of fat meat"
Broza is known, that he likes to grow citruses, but does not like to eat them, except products like limoncello etc.