As with the sides the front and rear pieces were carefully marked up at each of the nine stations to achieve a smooth and accurate taper on both edges.
I selected the best surface for the outside faces and labelled them accordingly. You can just see the taper marked in between stations 3 and 4 in this pic.
The tapers were then cut and planed to shape. That didn't take long at all.
Next up is making the side rebates. Should be fun!