I still have not received a correct answer to my original question:
“What is the spindown time (how long does it take to go into power-saving spindown mode) for the WD 2TB Elements Portable USB 3.0 HDD (WDBU6Y0020BBK-NESN) ?”
A response using the word “typically”, in the context of this discussion, implies there are variations on what the spindown time could be.
Do WD people not comprehend what is being asked??? How else should I state my question?
Furthermore, the information in http://support.wdc.com/product/download.asp?groupid=305&sid=154&lang=en says the timer becomes disabled. That is also incorrect information. The utility changes the timer from 9 seconds to 30 minutes. This does make the disk more user friendly.