‘Swing the clubhead to the right of the target to cure a slice ’
The biggest mistake I see from amateurs is a slice where the club gets whipped inside early on the takeaway, then chucked over the top in the transition. It comes down like you’re clubbing a seal and you hit across the ball from the outside of the target line. This body movement can be so ingrained that it is hard for amateurs to change it to a swing that sees them hit the ball from the inside by thinking about positions and body movements. It can be much easier to think about what the clubhead is doing through impact as an external focus.