St Annes Old Links down the road from me (Open qualifier) never uses temp greens. They are the best in the area too in the summer. Yet other courses seem to go to temps at the first sign of frost. Is it the type of grass, the length of winter cut, long ingrained myths or what???? there must be a reasoned logic why some courses do and some don't.
Gleneagles dont do temps either (Parkland) and have beautiful carpets come summer