If you're buying a system, how do you ascertain the "toxicity of the un

Question: If you're buying a system, how do you ascertain the "toxicity of the underlying instruments" !?
Best Answer - Chosen by Asker:

you do research into it's beginning, following their research to see where it brings you, then following their leads to ascertain the "roots" of the system!.Www@QuestionHome@Com