The "N" marked on the adjustable hosel of Callaway Epic drivers stands for the neutral setting. The Optifit hosel allows adjusting loft up or down from the standard or "S" setting. You can add up to 2 degrees of loft by turning the cog to +1 or +2. You can also reduce loft by 1 degree using the -1 setting. Additionally, "N" represents a neutral ball flight while "D" shifts the face angle into a draw bias. Therefore, choosing "N" will provide the standard loft with no bias, while combining +1 loft with D will add 1 degree of loft with draw settings.