ORIGINAL: Ybenjulkay2x

It hover 5-10 second then it drop and I just add a little throttle. Head speed, too hard to tell the sound of the motor and blade are the same but i realize/found something on the main gear, i replace the main gear an hr a ago (I went to lhs to get the main gear)as i found some of the teeth on the main gear are round off, after a test fly it hover better that before, i believe it loosing head speed a little on hover due to round off gears. also found some binding on one of the blade grip one side is free when changing pitch, the other one, not realy that free maybe coz of thread lock on the screw where the thrush bearing goes so I just add a little oil in it, what's the best oil I could use for this for less static, right now i use turbine lubricating oil to free it.