Yankee Yankee is a new to market horse racing tipster service which is being offered by one Gavin Sutton. He claims that there is the potential to make a decent amount of money following his betting advice. Introduction to Yankee Yankee I want to open this review by addressing a bit of an interesting topic. And that is the disparity that can exist between the marketing for a tipster service, and the reality. Now, I can appreciate that…