This little tree was seriously overworked at the beginning of this year as the original posts show. Links to my original posts: Here & Here. It is a wonder to me that it has done anything at all this year. Indeed it should probably be dead but it has survived and is showing some real signs of growth at the back-end of the season. If I am spared to live to see next year this tree should make significant progress and start to fill out into a decent little shohin.
It needs a branch or two removed but I will make no further decisions of this nature until the foliage fills out a lot more but I am satisfied with its progress so far. A better pot will do no harm at all.