My wife being Scandinavian, I decided to do a Viking Longship as my next project. Problems have already arisen. First, the keel was warped so after glueing in the ribs, I added some stiffeners between each of them. Then I put in some reverse bend and left it in the jig for a day. Thankfully most of the bend has been removed. I think the planking will finish the straightening job. Second, the planking has a lot of laser burn dust that has turned the wood a nasty grayish color what I can't remove, Sanding only spreads the dust and makes it worse so I'm hoping Tung oil will tone it down a but, at least it looks a little better after running a test on some scrap pieces of the ply. The garboard strake has been installed on both sides and so far the build is pretty straight forward.