One of the most important concepts for consistent wedge play is to build a "margin of error". Luckily, one of the easiest ways to do this is through proper use of the "bounce". For players who are unfamiliar with this pattern, this is one of my favorite drill progressions; it should not only eliminate any contact isuses (such as digging with the leading edge), but it should also help engrain the "coasting" pattern that is required to create an even, sliding of the club along the ground during the release.