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Use the same precautions that you would with old brake pads. If you have to make a panic stop at like 60 mph then the pads will burn on the surface. This burn will look shiney and be slick to the touch. The result will be that the pads will not grip the rotor as well and cause reduced braking power. When this happens it is a good idea to replace the pads, cause if it happens again before the burnt surface gets worn off then the pads may crack and fall apart. New pads are just a pain when that happens cause it's a waste of money having to pay for new ones and install them when you just got through doing it.
So, since panic stops are rare then I never bother worrying about new pads and drive just like I normally do. The only reason "pad break it" even exists is for the manufacturers to attempt to take it easy during the warranty period.