Hoisting sails:
The luff of a mainsail should be pulled on until it is taut, but it should never be sweated until the bolt-rope is nigh to parting. The peak should be hoisted until the proper draft appears in the luff. In light airs a better draft will be had by slacking both peak and luff and by hauling up the weather lift, so as to take the weight of the boom off the canvas. The lighter the wind the more baggy your sail wants to be.