I do. But it is a surprisingly difficult question.; at least with the setup I presently have I cannot answer it. We also have a lot of solar power and occasionally we fiddle around disconnecting each to see what each is doing, but of course it varies so much with battery state.

We will be rewiring over the next few weeks with some cleverer monitoring to give constant readout of each, but even then the answer will not be straightforward.

However, my sense of what happens in moderate breeze (15-20Kn) and low battery state is 'disapointing'. If I was to replace it, it would not be with an air-x.

Sorry not much help!