I am building Joe Greenley's Silver design, but will be using my 17' strongback, which is 1' longer than Joe suggests. It has 10" risers. Can anyone see a problem with this arrangement? When I made a Guillemot on a 17' strongback and was stripping the hull, the bow hung down a bit on the end, but the pictures of the Silver don't seem to do this. The entire boat seems to be above the strongback. Thanks.

John