Key West has been a flurry of activity for the last four days as sailors swarmed into town for the annual race week that is being held for the 28th year. Quantum Key West 2015, which begins Monday on the aqua waters off the southernmost point of the United States, has attracted 115 boats in 10 classes and competitors have been busily preparing and practicing. The J/70 is the largest class in the regatta with 54 boats and features a who’s who of top professionals for the Midwinter Championship. This is the third year the sport boat has competed in Key West, and Tim Healy is the two-time defending champ. The North Sails executive is a favorite again after capturing both the J/70 World Championship and North American crown. “We have another real strong fleet down here this year, and I think there are a number of boats that are capable of contending,” Healy said. “The Class is maturing, and people are learning how to sail the boats better.” Follow the action on the J/70 Facebook page and also at the event blog (http://premiere-racing.com/2015blog/) and event website (www.premiere-racing.com target=_blank>http://wwww.premiere-racing.com).