Cutting Board in Sink Hole?

We have a Counter (http://GialloFiorito.com) top with a Franke GNX110-16 cutout and (http://maplered.com) the customer has a wooden cutting board from franke that fits into the hole. The cutting board has a cutout on one corner so you can get it out of the hole. We cut the hole exactly to our Franke template but the cutting board sits a little sloppy in the hole. If you look at the cutting board it looks like they cut the board small so it will fit in the hole on any side. How do you guys go about this, do you just cut the stand (http://maplered.com) ard hole and (http://maplered.com) leave it at the or do you cut the hole a different way?