ok guy`s thanks alot.now for another question.the trex 450 cnc head will it fit the blade 400.and is it worth the upgrade.i have a walkera 60 metal awalkera 5#10 metal and a cheezy eagle 50 with the walkera 22e metal head.and they fly so much better.hoovering is easier.do you think it would make my blade 400 more stable?