Personally, I wouldn't use this particular tree as bonsai, it's not the best material. The tuberous roots make styling a big challenge. What did you use to seal that wound? Also, you may want to check for bugs, spider mites in particular.
Hi,
I used vasaline.
Personally, I to feel like this isnt really the best sadly to say. Its survivng, not thriving.
Well, I'll let it keep growing, maybe something nice will happen
Thanks,
Porter
Have a look here what I did with mine...This is a much maligned fig...but it is the tree with which most beginners start. I decided to pay tribute to it and try to create something reasonable from it: http://nelibonsai.wordpress.com/2014/03/02/723/