Tony dont get me wrong years ago I also relied on charts for shows, But when I went solo I was determined to give the audience my full 150% attention and that said I weaned myself off charts totally and lyrics as a singer/player which in turn makes a better visual stage presence to the audience instead of your eyes always glued to a chart...it can be done and I am proof of it,....just start taking a few songs at a time without reading and after a while you will see that you don't need charts and you can be free to play songs in your own way.....its not that difficult...try the blindfold Technic when playing and also try having people talk to you when you play all the time keep playing without the charts which to me makes you sound more robotic musically....just my personal opinion but what do i know/.....

ciao