David Gilmour with or without effect pedals is the best performer guitarist ever. Have a look at "STRAT PACK" dvd to see the song called Marooned is the song you are talking for, watch the way he plays and i am sure you ''ll understand that the effect pedals dont make a performer thank you Michael Athens Greece

PS: The EDGE of U2 uses a container of effect pedals maybe more than 30 in every live performance this not make him not a good guitar player too :)