"This tour has given me the type of problems any coach wants - strength in depth with competitive players who all have ambition - and players with quality too, " Jenkins added.

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Though she tours with backing musicians, Wasser says a certain type of loneliness sets in on tour.

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Tour pros and elite amateurs now use this type of mobile technology frequently to communicate with their instructors.

WSJ: Online Golf Instruction: What Works | Golf Journal by John Paul Newport