John, I recommend you click on the the Guillemot Kayak website on the right and drill down through the Plans to the Guillemot Double and click on drawings. This overall drawing shows the placement of the cockpits as related to the stations, approximately. I think you can interpret them within and inch or two. I looked all through Nick's book to find the location of the cockpits and couldn't any exact location. Nick did describe on page 187 on how position the Gully Double's cockpit based on the weight of the paddlers. Of course, I am sure if you purchased the plans this would have the recommended location...