Well also a more neutral grip will make it "easier" to slice and a stronger grip would make it easier to close the face, theoretically. Don't get caught up thinking about to much stuff. Just work on a back swing that comes more inside bringing the club a little more behind you then try a back swing more outside in. Use your same swing just practice different club paths, the fix is simple I think. You could also play with ball positions a little bit, try moving it a little more forward and see where that gets you.