Category Archives: MLB
Say it ain’t so, Joe – Doctored Bats Break the Rules, Part II
December 22, 2011What is Bat Doctoring? An altered bat (also known as a “doctored bat” or a “juiced bat”) is a bat that has been physically altered from its “out of the wrapper” certified condition. The inertial properties (weight or moment-of-inertia) of … Continue reading
Posted in Baseball, MLB | 2 CommentsThe Hitting Jack-It™ System Added to MLB Authentic Collection
December 5, 2011Major League Baseball announced today The Hitting Jack-It™ System, a variable weighted hitting system, has been added to the MLB Authentic Collection through a new licensing agreement with MLB Properties. The Hitting Jack-It™ System is designed to be used in … Continue reading
Posted in Blog, Hitting Jack-it System, Major League Baseball, Media Events, MLB | Tagged Major League Baseball, MLB | Leave a commentAbout Marco Estrada
Marco Estrada Jr., a son of the baseball-playing Estrada family of Los Angeles, is a former professional shortstop (Seattle Mariners organization) turned successful entrepreneur. Along with his father and brothers, he developed one of the best tools ever invented for the game—the Hitting Jack-It System™.
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