OKThe older stanley looks to be much better machined. Sole is smooth, how's flatness though?I was very dismayed to find out the new #4 has a very cupped sole. Attempted to flatten it by hand, but after a minute or so I realized it'll take me days to do it. So I said smurf it and threw it on the belt sander, it's mostly flat now and I'm not going to bother with it anymore.