Dhardjono, Do you think that the vidration too much? I am a little worry about that.
http://log.xaircraft.com/#2014_01_19...250_45.1.05.39
Sorry for butting in but the best way to determine how well balanced your props and motors are is to mount the camera directly to the frame, not with a gimbal and shoot some aerial. The reason is that not all camera's are the same when it comes to vibration induced jello, not only that, Density Altitude plays a role in this too. Your footage might be perfect in the afternoon but the next morning its very still but colder, the DA lower, the air is denser and the props have a little more grip which can cause vibration.
No doubt that the logs are a useful guide to setting up performance but if your doing this for AP work then the only thing that matters is the footage coming out of the camera and there are a lot of variables that aren't in the logs. If I'm flying at a high DA I'll change to smaller props, not as efficient, requires more throttle and shorter flight times but more often than not it really smooths things out. I live at sea level but often shoot at 8,000 ft MSL which is a very different environment.
You might be surprised at how much of a difference a little change in DA can make.