I've noticed I slice my drives a lot because I pull my front shoulder (right shoulder, I'm a lefty) out early when on my downswing.
When I start my downswing my right shoulder is moving back instead of staying parallel. This causes the ball to go wayyyyyy left of where I'm aiming because my arms/hands are being pulled to the inside of my swing line causing a massive slice. I tried looking for some ideas on youtube and other places, but those videos seem to be more concerned with the backswing instead of the downswing.
I've noticed this is usually only a problem with my driver and 3wood.
Any ideas would be appreciated. Thanks a lot everyone!