As has been said in every BSA related conferenence, training, or webinar that I have attended, the data points with a * are required in order to successfully submit the data to FinCen. This doesn't mean that you receive a pass to ignore all of the other fields. If you have the data available to you, you should be including it on the form.
As John, Ken, and Randy have said in a number of forums, "If they didn't want the information, they wouldn't have asked for it."
I can do all things through Him who gives me strength. (Phillipians 4:13)