That's a good question. I have actually thought of making a horizontal knife, as my knife is only a vertical one..
But if you look, there are actually a couple horizontal wires that make some horizontal cuts.
After the vertical cut, I then gently stir it all a bit, and then run the knife through again.
In the end, All the curd is cut, and its uniform enough for me right now.
Mark, That is a great Idea. I actually may restring this thing with your idea......