I have noticed something when the 777,757,767 and A330/340 touch down. Now these aircraft have their main landing gears tilted slightly back or forward. When the Boeing aircraft touch down they make a complete touch down on the runway. however when the A330/340 touch down the main main landing gear which is tilted back the two rear wheels will touch the ground first then the aircraft does a slight lift then settles down on the other main gear wheels and complete the touch down. I saw this yesterday at JFK
with an Air France A330-200 and a Lufthansa A340-300 and many times in the past with these aircraft. Is the something particular to airbus.