Ok.. i just "discovered" a way to delay a MT as long as you want.

http://www.unbelsito.com/MT_delay.avi

Description (if someone has trouble viewing the video):
Usually MT come out when you  go simply straight  after charging the drift power, so simply dont go straight  
But, if you turn, the drift power will reach the max and the kart will lose the control.
So keep on jumping, turning left or right until you reach to area where you want to release the MT, then do a last jump landing straight.

Anyway, as subject says, i'm not so serious ...

termoPilucco