Which Grind on what Wedge?

In this question and answer session, Brent Jones asks, "can you explain the different types of grinds on wedges and which grinds are best suited for certain shots? "

Mark discusses how the sole of the club can really help you play different shots or even just help you play the one shot you have. Mark discusses how there is a range of different sole grinds with heel relief, toe relief, low bounce, high bounce everything else you might need to know to improve your short game.