I would just like to vent just a little. Not for nothing people, but how many contractors out there in the field try to get away with things. Does anyone read the instructions anymore? How many times I have to inspect a job and the last thing I inspect is the panel. How many times I have to fail a job because the breakers aren't labeled, but even more so is that I look at a panel to find 32 circuits in a 30 circuit board. Too many times people try to squeeze in one or 2 more circuits by using "twins" or "Half Size" breakers. All they have to do is read the label on the panel. It will tell you how many circuits are allowed. Several companies will label the panel "12-24" which will allow 12 full size and 24 circuits with using the twin breakers. However if you have a 30-30 panel, then 30 full size breakers are allowed and no twins.
Sorry but I just had to fail a contractor this week for this and it realy should not have to happen. I will get off my soap box now. Sorry!