We've been building a big retaining wall this week - one of the bigger ones we've built before. My foreman is bitching about his arms and wrists hurting from splitting the bricks. For this wall, we are using Manor Stone from home depot. Don't knock me for it - it's what the client wanted. Anyway, we always end up splitting 4-5 for every level of the wall to get a good fit. Currently, he's been doing it by hand with a pick or a mallet and wedge. There must be a better, inexpensive, way to do this. Any ideas?