Ryan
Just to correct Tom D (and you don't get to do that often) the east coast is generally drier than the west coast of Scotland, although the west coast compensates by being, generally, several degrees warmer. Given your trip is a short one I would suggest a double dunt at Gullane, playing No. 2 and No. 3. Given the time of year, there is a good chance that frost will be a factor. I've played an awful lot of winter golf at Gullane over the years and have never played off mats or on winter greens.
Niall