Mario, your fig looks great, hopefully you get to ripen those figs and enjoy them.
I use Aluminum tags, and still end up with missing tags, when they get blown away by the wind or inadvertently misplace the when pruning. The ties could break too.
When rooting or repotting, I try to put the tags as fast as I can. If I don't, I might end up with a fig tree, called unsure and it becomes an unknown.