Long motor leads are the SAFEST. Large or undersized leads. KEEP the motor leads loosely twisted & as far away from the servo & antenna leads in a plane body. SPOT glue them in place securly!!!!!!!!! At a crash scene, you will not know that the vibrated loose leads wound up right next to the servo & antenna leads.........KAABOOM.

motor leads very bottom of plane. all others at the very top of the plane.

or on opposite sides of the plane.