Description Primarily, two factors cause a slice. The clubface remains open at impact, or the swing path is outside-in. The anti-slice technology of the Bob Burns No Bananas Driver can eliminate the slice from your game forever. The design elements “center-of-gravity location, face angle, shaft flex, lie, and hosel offset “are geared to help you square the face through impact and provide the additional weighting, placed inside the toe and heel areas, expands the sweet spot and reduces clubhead twisting.