I trained on sites where the electrician came through the door after everybody else and got blamed before anybody else. The ceilings were drawn, the joinery was made, and every good idea cost somebody money to undo.
In 2009 I started Wirewright with one rule that has not moved since. We come to the second design meeting, or we do not come at all. Seventeen years on we run two teams and take about nine houses a year, which is fewer than we could and about right for the way we work.
I still mark up every lighting plan myself, in pencil, usually on the kitchen table of whatever house we happen to be in. Then it gets drawn properly and issued the same week.