I use charts for some songs, especially lyrics, but I keep my MPP out of sight, to the side. I learned that is much easier to learn to glance ahead at an entire phrase and force yourself to immediately reconnect with the audience.

Sure, it is better to memorize the whole thing, but this is better than keeping glued to the chart.
_________________________
pa4X 76 ,SX900, Audya 76,Yamaha S970 , vArranger, Hammond SK1, Ketron SD40, Centerpoint Space Station, Bose compact