It happened to one of the JY's in the club two years back. Luckily the boat was being moved around a campsite on a trailer with the mast up. It hit the lines and bang snap.

And Mary, my point about mentioning the fact that Hobie is the only one that makes "comp tips" is the fact that if electrical insulation was such a big issue that he would need to bear in mind to preserve that property whilst making his modifications.... numerous other manufacturers would be producting non-conductive masts. However, they aren't, because they realize (as does hobie I'm sure) that the increased performance is more important to the customer base than protection from powerlines.

I mean who goes into the showroom to hear the salesman say: "yes we incorporated this comptip on the top of the mast so we can save you from your own stupidity when raising the mast around powerlines. That'll be $11,000 Please."