I've read that all young trees producing figs for the first time should have all figs pinched off so that all the tree's energy will go into the growing of a good root system. The roots are more important than the figs.
After trees are established, allow some figs to develop, but thin out the main-crop figs until trees put on some age, and growth.
Rewards usually follow within three years, from cuttings. For the bigger air-layers...use your judgement.
Roots first...figs will follow.
Frank