Nice article you just find Auk.
My first tree was also a ficus Ginseng that suffered the same fate described in the text. It was given to me as a present from someone that, at that time, didn´t know much about the bonsai art. However, once I got it I kept taking good care of it despite I knew I couldn´t consider it a real bonsai. I´ve become truly fond of it and as a result it´s grown stronger.
Now, this article poses several ideas that I will take into consideration, specially the one regarding rocks inserted in the concave part of the trunk... That´s an interesting option to make it, perhaps, a more realistic bonsai. Thanks Auk
Alain