If there are no Caprifigs around Brawley now, It seems that in the good old days, there were plenty, as well as Smyrna figs (Calimyrna) ...!!
just have a look ...
http://cdnc.ucr.edu/cgi-bin/cdnc?a=d&d=IVP19080425.2.24
To make matters even more interesting,..Brawley's sparrows, orioles, Mickey's/Minnies, Bunnies .. may also have given birth to a particular wild, , officially named 'Brawley', with the looks of a most sought-after, Persistent Caprifig
just read this familiar page
http://www.crfgsandiego.org/Presentations/The%20Incredible%20Edible%20Fig.pdf
Henry ( twobrothersgarden) should check 3 or 4 samples of their fig seeds to verify if some or all have been pollinated. The Brawley area should grow the early Caprifig, in principle , getting their Profichi ripe and issuing insects through the second fortnight of June and less pollen first and second week of July.
Caprifigs growing in the Bay Area ripe a month after due to the particular weather.
Pat (figarita) did apparently confirmed this with her Caprifig (Menlo Park)
Grafting a pair of branches on some selected trees if you have several of them may be a good approach for a start.
Assuming a good, healthy Caprifig is found the air layer option is in my view the best to have a pollinator well rooted in the yard by the time Profichis are ripe and issuing wasps with pollen.
Francisco
Portugal