Hello to all. I recently noticed that my MPP motors after a 10 min flight are really warm in touch (not burning sensation but really warm) whlie my MP motors after the same flight time and in the same palce were not that warm as MPP and only could say "they are not cold". Maybe 15 to 20 degree of centigrad difference between MPP and MP. Any one here has the same experiment? Regards.

This will depend on how the drone was flown in terms of air speed and fighting wind speeds. The RPM on the MPP motors is lower than the MP due to the new prop blades and ESC's - all brushless motors should be warm to the touch after flight and it's advised not to touch them at all. Unless you have motor overload warnings then there is nothing to be concerned about.