@Steve_Sharp Thanks. The writing comes from many years of technical writing and user documentation (I’m a computer programmer), along with some other life experiences.
@Carlton_Dodd Thanks for the great write up. As others have said, having something for newbies is really helpful. Looking forward to another post on how you tuned all three and what you results were after tuning.
@Carlton_Dodd Proper documentation and communication is the mark of a great programmer and true professional. I know firsthand. 
@Carlton_Dodd Here is a walkthrough on flow rate calibration, I’ve done my best to make it accessible to the newby, please let me know how you find it to follow.