I just spent the entire afternoon making one serving tray. The first template for the sides was 1/4 ply, and I managed to chew a dip in it with the flush trim bit. Then after making a better template, I had terrible chip out on three different pieces. I eventually had to rout one side of the arc with a bottom bearing bit, then switch to a top bearing bit to do the other side. Then I managed to cut the bottom bevel the wrong way on one side. I didn't figure this out until I dry fit the parts. Okay, plane another piece of wood, cut the side, cut all the joinery, then rout the roundovers. Oops! I rounded over one of the ends. So I cut both side pieces shorter, trimmed my bottom piece, and Voila! It fits. At least I figured out pretty much all the things I can do wrong. Hopefully the next one will be easier.
I'll post a picture when I get it finished. It's from the last Wood magazine plan.