Clay Ballard from Top Speed Golf demonstrates an effective drill to eliminate slices and hit powerful draws using the B-29 Blue Brick training aid. He explains how to adjust shoulder tilt for an inside-out path and highlights the importance of slowing the hands late in the swing to allow the clubface to release properly.
Position an alignment stick at an angle to force an inside-out path under the stick.
Tilt your shoulders slightly more toward your trail side to help close the shoulders at address.
Avoid 'dragging' the hands toward the target, which pins the clubface open and causes a slice.
Allow the hands and arms to slow down late in the swing so the clubhead can pass them and square the face.
Think of the clubface release as a door closing to generate draw spin.