I have extremely good knowledge of the Proteus / cef set up and i have to concede, they do buy and use the cheapest crap they can find and sell at the biggest rip off prices they can. They do this for one reason all the fat cats are paid on profit, all the staff below are paid peanuts (hence crap staff). Use them at your own risk, i wouldn't unless your desperate. I could tell u things about these that would make you shiver.Well JohnD, yet again you have given good advice! I really think we are going to be left with no option but to change the cu, not sure I would rely on our electrician to purchase us good quality materials though judging by the comments on the cu we have!
Again thanks a lot for your help and to everyone else that offered advice.