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Like a few others, I have a Airmar p79 shoot thru. THe most confusing thing is not the installation, it is if you ever want to change chart plotter / fish finder aka depth sounder. You can't just swap it out, as every brand, actually even every model within its own brand seems to require a different bloody transducer and or connection. Head scratching bizzare and the websites of these companies are sh#t as far as info goes, and customer service non existent when your are trying to figure out what inhull transducer to get for which chart plotter. It's all set up for fish boats with tho

There is already plenty of regulation, I hope you mean more enforcement?

I had a situation off Gulf Harbour the other day when a guy in a yacht came out, wasn't keeping a look out (wasn't on deck), and needed to give way to me. He didn't cause he wasn't on deck. I went behind his stern close enough to exchange words and suggest he keeps a lookout, esp just off the marina where its moderately busy. But here is the thing. He didn't hit me, I didn't hit him. We both went on our way. I don't think any of that justifies more regulation. Remember, there are plenty of people with drivers licenses that still drive like a w^&#$@r...

Not sure where that comes from. ASNZS 3004.2 requires equipotential bonding, as does the US ABYC E11. The ISO standard is equivocal but then they are the same crowd who ok'd high zinc content skin fittings. From a reality perspective any boat with an engine has several different types of metals all in contact with each other via an electrolyte called seawater so the least noble is going to corrode. If a boat is wired for AC then you must have a grounding system. If not, I would have all the engine components, strut and shaft interconnected and protected by an anode or 2. Saildrives have t