Rick - I didn't realize re-torqued the tow rails was needed - I'll look into doing that first.
Terry, the leak comes from the aft stateroom, headliner, starboard side, just above the hull mounted portlight - landing on the teak shelf. I suspect the water comes in elsewhere then flows to this low point. Stanchions, handrails, tank fill ports and emergency rudder port have all been re-bedded. I've checked the mast/wire area - and they are dry. I'm haven't re-bedding the arch, turning blocks, genoa track or winches. (and I religiously keep the aft storage compartment drain holes clean.)
Pressurizing the interior might be a good approach.