PGA Class A instructor Mike Erwin has a resumé that sparkles with such gems as time spent working with PGA professionals, as well as a quarter century spent teaching the fundamentals of golf. During each of his lessons, Erwin focuses on the three core components of the swing: grip, posture, and impact position, drilling students in basic skills to build consistent, top-notch performance on the course. Lessons infuse old-school fundamentals with sophisticated technology, recording sessions with 3-D K-Vest apparatuses or digital V1 swing analysis that allows pupils to monitor their posture and correct common mistakes such as improper positions that cause loss of power instead of hitting it with the club. In addition to mentoring players one-on-one, Erwin fosters early development of fair play and concentration with junior golf classes and hones driving distances with winter golf skill seminars.