Here are the videos testing the "twitch". Apologies for the iPhone quality video. I did discover that the ST16 sun shades makes a perfect tool to prop your smart phone on for videoing.
This first video is the H being tested in the slowest modes of Safe and Turtle. Legs up and legs down. She's very smooth, very little twitch.
Video #2 is the H flown in advance/pilot mode at slow settings (turtle). Again not twitchy at all.
Finally video #3 flying in fast modes, advance/pilot at rabbit setting. This is when it gets too twitchy and responsive as you will see. I'm making smooth, slow, small stick movements but it looks like I'm going full stick. Again, it's perfectly flyable, well maybe not for a newbie, but it needs to be much smoother than this.