I got the hexie project sewn together the other night. It is sort of odd how you end up with uneven rows, but it has to be that way so that you can even it up to a square.
I think if I make another one, I will use a full hexagon on the 1st and 3rd row left end. When you square it, you cut really close to the point, so after a seam the point will be cut off. I just realized that the pic below is turned upside down..oops. So just stand on your head and you will see what I mean!