We are arriving in Edinburgh this coming Sunday and after four days there are driving to St. Andrews for five. I took my wife and her mother to Edinburgh and London 12 years ago, by still high on our list is the Edinburgh Castle which we saw, and the Palace of Holyroodhouse which we did not. While we're in St. Andrews, my wife wants to take one of those days and drive to Balmoral Castle, about 90 miles and a three-hour drive north of SA. I was reading the Sterling Castle today and wondered if it might not be a possible trade-off for Balmoral since we can make Sterling a little side trip when driving to SA. Does anyone have any experiences or thoughts about Sterling and/or the roads to there from Edinburgh and from Sterling to SA? I've been to Scotland three other times and do OK driving over there, albeit stressful. Thank you.
Jim