bonding wire loom sense it was install new during the insurance refit. This discussion has charged me up a bit and being hauled out right now, the Condo remodel just completed(carpet went in the day before yesterday and final pieces of furniture delivered yesterday), I'll have some time to start this kind of digging around. Dan and Ray are selling Tropical Dance and he's giving me his fancy corrosion tester. It's kind of like a "silver half cell" which measures the difference between items that are placed in an electrolyte forming a battery. The higher the potential (voltage) difference the more stray current between the two fittings. You test between through hulls, other various underwater parts like the prop shaft and the water by dropping one electrode into the water and testing with the other. The reason for bonding is to keep all these currents low to non existent. That will give me something to do now.