Okay here is the deal v-bar5.0.All was great tail was good then out of no were tail looks to be vibrating.I bought new tail, hub,shaft,bearings,blade grips and so on.I popped the heli in a hover 2200 headspeed and it was solid no wag or vibration did a punch out and when it got back to me tail was crazy vibration.All head block bearing are good same in the grips any help would be great