Normal
I have no problem with precision flipping on my HTC EVO 3D and my scores are pretty good as well. The only reason my scores are not as good on my phone as they are on my Xbox 360 is because of the lack of proper nudging on my touch screen. I don't like having to move my thumbs away from the flippers to nudge using the top half of the screen, so I just don't nudge at all when playing on my phone.