Vince,and Tim:Figs in pots ,or figs in pots or ground in Hot climates like Arizona,give false readings.
Only figs in ground count for me to have an Idea what is early and what is not.
Figs like Preto,Madeira Black,Or, Col de Dame,are late ripening,late to produce embryos,if in ground,but will force them self of producing early Embryos if in pots ,greenhouse,or in climates like Arizona.
Many figs mentioned in the above post are not early,only a few of the 41 you have written down are.
You can Mark down the three I mentioned in above post,and,you can mark down Malta Black,Atreano, and Tacoma Violet,that now on June 3,indeed formed match head size fruits now,in my garden,in ground ,in a natural way,in a cold climate,that they are indeed early.
The Bricks did not help at this point but it could have been helping,in an invisible way to keep my in ground plants protected from early frost.