OK, can you guys explain this contraption to me? I must just be dense (wouldn't be the first time someone has said that about me) - what the heck is the point of being able to move the head, especially while the drill is running? The only thing I can imagine is if the stock is oriented along the head's travel path, and you want to be able to drill nicely spaced holes. If you can control the head movement well, then you could get a nice, clean row of holes. But I can't see what other advantage the moving head provides.
Jason, please understand that I'm not trying to pick a fight or make fun of your purchase. In fact, had I not just bought the Tradesman DP, I would seriously have considered this. The quill travel is nice, and it's a lot friendlier for the "space challenged" people like me.