Thank God for the autosave on this board - I am always forgetting to press send/reply whatever!
In my search I was directed to emonlib (reinforced with the information in learn documentation). Clearly much work was done to improve emonlibCM.
I was sufficiency intrigued, that I read the new library and played around with some spreadsheet calculations. All my current sensors are cheap, low current, closed (non-snap-in) with very low phase distortion so I have no experimental data, but some comments - I have split them into 2 responses - they are huge!
mike