One thing to keep in mind is that an inclined treadmill is going to make your head bop up and down a little bit. I'm not sure whether or not it'd be distracting

One thing to keep in mind is that an inclined treadmill is going to make your head bop up and down a little bit. I'm not sure whether or not it'd be distracting, but you might want to try just walking up a mild hill some time and pay close attention to the movement of your head.