understanding of single line reefing is one single line running from the base of the mast up through the tack and back down to a turning block at or in the gooseneck then back towards the back end of the boom to a cheek block, then up through the reef out haul and then back to the end of the boom. You pull one line and it does everything. No going to the mast for anything at all. Am I wrong??? Dan, I think you just have regular slab reefing as I do now.