It's good to see this old thread. Now that several years have passed, I need to modify my previous comments with regard to insect-caused souring in my yard:
Black Madeira (from UCD 2010; heavy FMV. In ground); prone to souring.
Black Mission (from local nursery. In ground); good growth, excellent, no souring.
Black Mission NL (from Encanto 2010); superb quality, no souring, but tree died due to root problems. Saved air layer in time to try again.
Conadria (DFIC0005 from UCD 2010. In ground); prone to souring.
Desert King (FJ, 2014); good, no souring--too early for beetles.
Excel (DIFIC0020 from UCD 2010; In ground); prone to souring.
Hardy Chicago (from Cathy 2012); prone to souring.
Ischia Green (DIFIC0052 from UCD 2010. In ground); prone to souring.
LSU Gold (from Cathy 2012); prone to souring.
LSU Improved Celeste (bare-root from JD 2012); prone to souring.
LSU Purple (sucker from GF 2011. In ground); prone to souring until late in season when few figs are left, but insect activity has declined.
Marseilles VS (from vicki; originally from Encanto); prone to souring.
Panachee (from Mike G 2014); still small, but few mature fruit last year were sour.
Tena (DIFIC0021 from UCD 2010; prolific, sweet, prone to souring, ant damage and splitting—likely discard)
Unknown Georgia White Hybrid (from GF 2011) Outstanding, but prone to souring.
Violette de Bordeaux (DIFIC0063 from UCD 2010); extremely prone to souring--100% loss.
At this point, my only completely reliable varieties are Black Mission and Desert King, although I'm still trying a few other varieties that aren't mature enough yet to be certain how they'll perform.