By Sam Torrance I have never seen Royal Troon looking better than it does for this week’s Open Championship. The weather forecast isn’t great, with rain expected, but you don’t mind a bit of that as long as it doesn’t blow a gale, and there are no signs of that up here yet. Like St Andrews, it’s mostly a straight out and then straight back in links course. It’s very demanding and, at 7400 yards, longer than when I first came here, but is set up beautifully. This year the fans will have a home contender arriving on the crest of a wave, after Bob MacIntyre won the Scottish Open last week. It was…