Mickelson told critics of his actions to "toughen up" after claiming he was simply using the rules to his advantage, but a few days later sent a message to a handful of American journalists offering his apologies.
Looking rested and ready for a strong British Open run, Mickelson had a good-natured post-round swing discussion with instructor Andrew Getson outside Gullane's scoring trailer before joking with writers in a Scottish accent and saying he would only take questions about the last month instead of the opening round.
Phil Mickelson opened his links season with an Even-par 70 and then spoke frankly on a range of topics. I haven't been my best. "I've had a rough month and I'm working at trying to fix that". "I haven't been my best".
"Throughout my career, 25 years, there have been a lot of times where I have had to be accountable for decisions I did not make", he said. And the reason why this has actually been easier is it was my own fault.
In his most extensive comments since he purposely violated the Rules of Golf at Shinnecock Hills, Mickelson said whatever backlash he receives from players and the public was his own doing. So it's much easier to deal with. It's not the first time I've done something dumb.
Mickelson was penalised two shots for his actions at Shinnecock. I have these moments where it's like I'm in a cloud and I'm not really sure what I'm doing'. But I had to let that go. It took me a few days to kind of let it go. So it was just not a great day, and it was my birthday. And it was my birthday and I tend to do dumb stuff on my birthday. 11 and 12, the course record of 63 looked in danger but Fowler dropped a shot at the next hole after hitting into a bunker and parred his way in.
"At the time I was pretty angry. I tend to be more passive-aggressive in my actions".
Mickelson also revealed that his potential $10m (£7.5m) shootout with Tiger Woods is "close to having some stuff finalised", but that he and Woods would not be putting up the money themselves.
"There's a sense that things are getting back to where I wanted to be", said Westwood, who has not won on the European Tour since 2014.
England's Matthew Southgate was given plenty of encouragement during his Scottish Open first round - thanks to references to the man who took the nation's football team to the World Cup semi-finals. 'Nice shot, Gareth, ' came the cries from the gallery.
"I watched every minute [of the semi-final] and am obviously gutted with the result but not disappointed with their performance".
List equalled the course record, with Lee Westwood sharing second place with 2015 victor Rickie Fowler, Robert Rock, Scott Fernandez and Jens Dantorp.