That's fascinating, Fronhaul - thanks for posting that.
It implies that the ewes are shorn just once a year, in December - so they'd be carrying quite a bit of wool come the summer. It makes no mention of increased risk of flystrike in the summer however.
I wonder how the ewe's natural cycle of wool growth, rise and shedding is affected? I assume that, with only shearing once a year, the fleece is ready to be clipped come December...