Golfinity. David Gerken is a PGA-certified instructor at Golfinity specializing in swing mechanics and short-game technique. David works with golfers seeking to improve consistency and performance through detailed swing analysis. His teaching approach uses Trackman technology to provide real-time feedback and measurable improvement tracking. David's coaching focuses on building solid fundamentals and developing reliable swing mechanics. Lessons with David include comprehensive swing analysis, video feedback, and personalized practice plans. Trackman metrics provide detailed feedback on ball speed, launch angle, spin rate, and distance for measurable improvement. Lesson pricing: non-member $150/hr, member a-la-carte $120/hr, member package $100/hr, member recurring $90/hr, member semi-private $70/hr. Book a lesson with David to improve your swing and lower your scores with professional PGA coaching.