Early this Spring when I was getting my outside rooting bed ready, I pruned some one inch plus diameter branches from the Yellow Unknown fig tree growing nearby. I quickly cut them to about two foot long lengths and buried them in the compost pile just to see what would happen.
With no care at all they rooted and grew very strong all summer.
I'm relatively new at this, but based on what I have seen so far, I would generally prefer a cutting that was a little large over a cutting that was a little small.
I have, however, had very good luck rooting the terminal ends of branches too, especially if they are pencil size or larger.
In generally, figs seem pretty easy to root.
Happy holidays to all.
John
North Georgia Piedmont
Zone 7b