LynnBlakeGolf Forums - View Single Post - Understanding 1-L Thread: Understanding 1-L View Single Post #1 02-08-2011, 09:14 AM drewitgolf Lynn Blake Certified Senior Instructor Join Date: Jan 2005 Location: Massachusetts Posts: 1,334 Rid Depression with Compression Longitudinal C.O.G is your "Sweet Spot" or "Swing Plane", reference 2-F. Plane Angle and Plane Line always refer to Sweet Spot LCOG application, not necessarily the Clubshaft Plane. For any given line of compression (through the ball) every machine must produce identical impact alignments. This simply means that Impact Alignments must match the desired shot, reference 2-0. Precision is recognizing and reconciling minute differences. __________________ Drew Let Your Motion Make the Shot. drewitgolf View Public Profile Send a private message to drewitgolf Visit drewitgolf's homepage! Find all posts by drewitgolf