I think it was Jrice that named this fig Granthams Royal. He said he like it very much - based on taste, reliability, productivity and size. I trial this fig based on Jrice writings and we eventually got in touch as he wanted to know where my source. I have not heard from Jrice for at least 3 yrs.
I visited R.Watts a few yrs back. He has an interesting collection and I would visit again if I am in LA area.
A must visit is Harvey -- he has a commercial farm growing chestnuts, sapote, and likely over 200 varieties of figs for commercial. Looks like before I visit Harvey, I got to place my fresh figs order in advance.