If people need to use charts, lyrics as a crutch to get the job done so be it,... enjoy how you play, I do.
Donny, your're just being a jerk posting that on this thread. If you don't use sheets yourself well say that once maybe but don't go on and on in a derogetary manner .... Hey wait on I see you say you do use them in rare circumstances .... so then they are a crutch for you too? Given your obvious position on this there's no real need for you to be posting on this thread ( or any threads related to lyric sheets and charts ) at all thank you.
There have been plenty of major musicians and singers that have used sheet music and lyric sheets/teleprompters over the years. If you are putting yourself above them all then you're just not being real.