Maybe the attitude to take is do as the site asks after all they are the customer so to speak and try not to worry about the end result if it is done how they wanted, although you do run the risk off not being employed by them in the future when the work is snagged and they have to pay out for doing it again properly. It seems all sites are not like this though, months ago I was offered site, nice new walls and power where you needed it, £20 a metre supply your own grout and adi. The trouble was they wanted everything bang on no corner cutting and for a 3.5 metre kitchen with loads off sockets earning £70 over 2 days did not appeal. In fact I know that they were losing a
tiler on a weekly basis and had to continualy get a replacement.