Hello. Sorry if this is in appropriate to jump in. I'm the lead programmer and the guy that made the video as well. Unfortunately, you know these videos have to be put out under deadlines, and we will have about 4 more months of time to improve the programming, plus always improvements going forward. The position pad is actually a slider, and as you slide your thumb to the left (in example), it narrows the band of focus for how much you can move the cursor. That's not completely refined yet, and will get better. Feel free to PM me on the kickstarter site if I can give more info.
Brent