Whacker, here is a link which will help you a bit:
http://www.mission4today.com/index.p...ewtopic&t=6692
For Corsair, 2500 to 2800 rpms is the powerband, with decrease after 3000 rpms. Want to go thru it step by step, look me up at my server called WD Fights. It is a full real server with full CEM enabled, and we can switch over to 4.11 to help you out. That way you can learn step by step with direct instruction.