I'm suspecting the question was geared more toward the urban gospel genre where, it seems, having an upscale 5-6 string bass is the norm, albeit fashionable thing to have. Granted, I have seen cats playing SX/Brice, Ibanez, Schecter and other budget 5-6 strings and killing it (even saw a cat absolutely murdering a Wishbass). A video was posted of a guy playing a stock 4 string P-bass and it sounded fine. So the rumour should have been dismissed right then and there. Some folks just have to have those notes below low E so a 5 string is necessary. So no doubt a 5 string P-Bass can work.

