I am trying to do a brake fluid fluid flush on an 00 S  with 31K miles.  I read in the Bentley manual that to do the procedure correctly on cars with ABS/TC that you need the correct Porsche tool to open appropriate valves in the sytem for a complete flush.  
 
So my question is will I be wasting my time doing the brake fluid flush today using the motive power bleeder and a catch can?