I've seen a few great bonzai mom threads. Rusty is a very good source, the info he gives is great and he knows whats going on. What genuine said is also proven, I've seen plants (in threads, mind you) that are VERY old, 10+ years, that are still thriving. It kind of comes down to what you wanna do, just make sure you have someone like Rusty or Genuine who knows their stuff to get your info from.