Hi Richie,
I have IC from Mountain figs growing. It is slow growing, along with Golden Celeste, it is also a knotty twisting plant with many nodes. Hoping for a first fruit this year.
The O'Rourke grows faster with more "normal" growth. I did get fruit but do not remember the neck being as long, or the fig being squat shaped. From memory I think it was more oval.
Have you tried Hollier? A very nice fig and larger than the O'Rourke. I thought it had more juice and the texture was not as thick.
It is worth noting these are now second year plants in buckets where you probably have established in-ground trees.
Newbie opinion, Mike.