Erik is definitely making progress with his swing, and here we identify the major issue which, if he can correct it, will significantly improve his mechanics and his ball striking. Erik stands with a flared right foot, which allows him to rotate the right leg and pelvis too much in the backswing. Coupled with an upright stance that does not incorporate much pelvic tilt at address the over rotation and lack of depth cause the left side of the pelvis to move forward and down, which in turn pressures the front of both feet and makes it hard to rotate into the forward swing without driving the right leg up underneath him.