I'm not sure what you are talking about, but let me know when you have skinned that cat. I have some BZ to trade!
I'll keep a good eye on level II for ya'
Ha Ha! it is simple for sure! but Avery tells you to look at Level II behaviour, does not he? But he does not tell you where to look at this Level II, he tells you to read books about it So i suppose adding SOBI is not the complexation or modification of BZ, but it is the BZ.