Oh Dear...
Fearing do a good manual that explains everything - you can order it (for free) from their website. I bought most of my stuff from them and Paddock perfection & would recommend both for good service.
Another one off my xmas list
Ah, but you don't do a free manual for explaining the whole set up Gareth
Fearing do, then you just buy whichever energiser suits your needs
I can't remember if you didn't have any powerful enough ones or if the costs were 'prohibitive' compared to others - but you're always on my price check list
Karen x