Three posture errors that drastically affect your ability to swing the club well are having a rounded back, hips too level at address and incorrect knee flex.
If you are looking to compare your golf swing to previous swings or you want to interact with your coach, then recording your swing optimally on your iphone (or any other phone) is important.
Peter Knight is a PGA Master Coach and is available to help you either via the videos on this site, or with online or in-person coaching.
Peter is on the Skillest platform for online coaching. Click here to see Peter’s Skillest profile and find out more about online coaching.