Thanks for this tip!  CrystalDiskInfo 7.8.3 x64 worked better for my Seagates than WDidle3 for WD, and I didn't even have to remove them from the server.  Over a 5-day period of testing, one ST4000DM000 drive that had a LCC of nearly 250,000 in 2 years dropped to a rough estimate of 1 head park per 8 minutes after I set the APM midway at 80h, and the other ST4000DM000 that was sitting at 369,149 LCC had the park timing reduced to about once every 20 minutes when set to highest performance FEh. T