I have 2 healthy heads on my torch and they both appear to be splitting. One head clearly has two mouths and doesn't look as far into the process of splitting. But the other head looks to just have the one mouth that has a "gaping and stretching" look to it. This head is further along and possibly pinching into 3 heads. I guess my question is more focused on the mouth and when, how, why it's formed since these are clearly different.