Just replaced my rotors and pads today (2010 XF 5.0 SC) due to pulsating brake pedal. All great now. I noticed on the info for the rotors it warns after spirited driving not to hold the brakes on a specific spot on the rotor for an extended time as the hot rotor can cause additional pad material transfer and create uneven braking and eventually pulsing

So - here's my question. When I park I usually apply the emergency brake (in the UK most people do that but I've noticed here in the US most people do not). From what I understood of the rear calipers that just winds the rear pads onto the rotors. So isn't that exactly what they are suggesting not to do - make pad and rotor have solid contact for an extended period? Or have I misunderstood how the e brake works?

 

You are doing it correctly, the keys words are "spirited driving".
Just tootling along the highway or through the 'burbs, even in stop/go traffic, is not going to get the rotors anywhere near hot enough to cause a problem.