ok I'll try to explain
The object the smoktrail has to be behind is located @ Y vector 5 (purely an example here) and the actual smoketrail is loacated @ Y vector 0
then the object moves to Y vector -8 (example) but the smoketrail still stays @ Y vector 0 .... so the object moves, but the smoketrail only moves with it in X vector, not in the Y and Z vectors
