M_Boats: Spinnaker for M15

I finally opened a small bag which contained a spinnaker. I would be on the water today except for the heavy rains in the Los Angeles area. The spinnaker's luff is 13' and the width between the clews is 11'. For those M15'ers with spinnaker experience: Would you run the spinnaker sheets through the jib fairleads located on my cabin top just aft of the mast? Or, run the sheets back to cleats in the cockpit (double set of cleats are installed now)? I noticed a heavy cloth loop attached to the center of my spinnaker. Is this a place to attach a small line to take the wind out of the sail when taking down (pulling it in from the middle? Does anyone use a spinnaker sleeve? Norm M15#172