I'm just doing this two day ourse at the moment, going back tomorrow, I have to say its all very basic, it's focused on more the paperwork side of things and things to watch out for, nothing to do with how to fit it to the wall etc, I have only done it because I thought it was worth knowing a bit more and having a better understanding. I know it's all obvious and basic, but it's nice to confirm to myself that it is as simple as thought.
Its been handy for me to speak to other people to get information on how to go about getting paid etc to install them and so on, like I say, it's all very basic common sense stuff. Waste of money? Erm maybe so, a bit more knowledge, so don't feel ripped off.
Like I sy above, it's not about installing them as such, it's just about the situations and positioning and different bits of paperwork which if you had to find out from googling you my not pick it up, so it's nice to be told and generally chart with others.
Before I started this morning I was more than aware of hot to install them and multiple earthing systems and awards etc so it's not thought me a great deal, but I guess it's another string in the bow or whatever the saying is.