the first 2 were glitchy to the point i couldnt watch them all the way through... and pretty messy. The third one was much better, you kept your distance from uke and used proper hits rather than the classic ukegrater technique. I agree with deady though, grab less! Youre getting there, the next step is using relax more to make it look less robotic, and adding more power to your hits. Keep at it.