From my reading of the American sites I learned that they have a nightmare variation in voltage almost everywhere. Anything between 107 to 130volts that also vary during the roast. Our 230/240volt system seems more stable even allowing for mealtimes, washing, school out etc.
Joe's experience is with the US system and I guess even he is pleasantly surprised at how much better we are off here.
I think it is too soon to start a sticky 'Behmor Profiles only' thread but as more and more of us gain experience, it will come. All I can suggest now is keep a sharp eye on your roast and keep a log. I tend to add a couple of + + to the roast in order to have a little leeway but so far they have always been cancelled when I need to hit the Cool button.