The tree was rotated one hour against counter clockwise. It was by no means easy. Now I understand why it was not in that position from the outset. I had to do major surgery. I would have liked to do more rotation, but did not dare to. If I had changed the pot altogether it would certainly have been possible though. But it will most probably not be harmful. At this occasion I also got rid of most of the akadama which I feel is dangerous when trees are freezing in winter.