Just got my 1520.3 last week and even after the touch update I'm still having some issues with it.. Mainly just from scrolling on the start screen and after exiting apps there is a delay before the touch is recognized again (that might be only after the phantom touch happens). Turned off auto brightness and put it to medium, turned off sunlight readability, touch sensitivity is normal, glance and double tap to wake are off. On WP 8.1 not sure if that's one of the problems but I'm really hoping this irons itself out in the next few updates.