A few months ago I took a cutting that I had rooted and placed it into a colander. At the same time I dosed with with some mycorrhiza fungi. The post can be seen here: https://indianabonsai.com/2013/03/17/testing-out-mycorrhizae/
All the while it grew very well and thickened up quite a bit, but I was worried that I had not seen any roots poking out of the colander.
I was worried about the root system, but it looks like it was ready for repotting.
I decided to repot it into a terra cotta pot. This accomplished a couple of things. For one it let me examine how the root system has developed compared to some of my cuttings in regular pots. It also lets me straighten out any crossing roots and prepare the root base so that I won’t have any big problems down the road.
Another ficus I allowed to extend growth at the tips without any growth near the base has failed to thicken much at all, so I might cut it back a little bit to get some back budding.