J/30 Class Association Forums J/30 Forum The Boat, Sails and Equipment Through-hulls: Potted or Sealed?

known stuff I've found to be not isolated from core (above & below waterline):
Engine Exhaust
Around Chain Plates
hinges on cockpit and anchor lockers
all hardware on cabin top
stanchion base mounting holes


Confirmed isolated:
Speed & Depth Xdcr
Head Seawater Flushing