I have always emphasized that setup is fundamental. That being said the basic factor in all g0od golf starts with the grip. When you haven’t created the proper connection to the club it will affect the proper functioning of your arms, elbows, shoulders, body, legs and feet. Incorrect grips create an imbalance that affects the proper setup fundamentals, which lead to compensations in your swing motion. Getting the grip fixed is fundamental to your ability to improve your swing and your game.