Richard, your plants look much better than mine although mine are all still alive so far. I did the plastic bag cover for humidity. I was worried when several people told me theirs had turned brown.
The delay with the original "rootstocks" had several contributing factors. They dug up the plants right after the 15-day Chinese New Year and went to apply for phytosanitary certificate. Of course other people were also applying and they waited a week for it. The package was shipped immediately by 2nd day air, and arrived in the U.S. at the start of a holiday long weekend. Then the package was lost for several days where the inspection station had not receive it and the shipping company said it's waiting for inspection. So the plants were bareroot for 3 weeks. I was only able to save 1 out of 6 rootstocks.
Things that would have helped were deeper shade, smaller pot, less/no watering, slug pellets, vitamin B/superthrive soak.