no not supreme, there food sucks, anyway I work for Fluor, we just hire a bunch of great UK electricians, however I am US. the problem with the on-site guide is, it is only for insallations up to 100A. We have installations up to 800A and above running off of generators, no utilities here. The installations for the most part have been designed by engieers that got their degees from a box of cracker jacks. Either in pakistan, india, or some other third world dump and they havent got a clue. We even had to tell them to bring in an Earth conductor.