It's true that a group trip is the way to go. I went on an R&A sponsored tour in spring of 2010 with fellow turf students from Elmwood and Myerscough (with nationalities from Scotland, England (north and south), Spain, South Africa, and the US), and it was a week I will never forget.
One part that I really enjoyed was that we went entirely by van from Fife, taking the ferry from Oban through the Sound of Mull. To me, this really enhanced the experience and made it a true "journey." Of course, the weather was outstanding too--calm, sunny, and warm enough for a t-shirt. Unless it was truly stormy and dangerous though, I think I would have enjoyed it either way. It may my the most remote place I've ever been (Mullen, NE is the other contender), and taking a boat ride out to what feels like the middle of the Atlantic really drives that feeling home.
I also enjoyed playing through the cattle and sheep for the novelty and "sense of place," but conditions probably would be a little better after they get moved up the hill but before the summer sun and rain gets the grass back up.
Wish I could join too!