Howard,
Recognising your icon, I'll explain this for those without any background.
Not all do, as you get lighter, you get less able to carry the weight. There is no cutter available for any piston type that I know of.
The other thing is, you need a certain amount of inertia to force the wire into the cutter. The issues of what happens to the cable ends afterwards are a whole unknown. Usually (so I'm told) not an issue, but every now and again....
Finally, you need to catch the wire at an angle that allows the cutter to bite. If not, you can sail along the wire, rotating around the moment until something else catches it and the whole shebang begins to look a lot uglier.
I'm not familiar with this particular wire, but a number of those identified have been located either by strike, or by people flying under them.