you are not wrong about badly fitting bulkheads, I experienced this when I built the artesania latina hms surprise also my keel was badly warped, I have read some accounts of people who were building the same ship I have and most said they had problems with the stern, this was the first thing I checked and I found that the so called laser cut parts did not follow the ships line, after checking the drawings I found that from the end of the midship rail the upper hull planking tapers up and is around 5mm higher than the frames allow for because the rail capping on the stern should be almost level with the end of the side rail capping, so if the side are not tapered up the stern as supplied is far too high, and that was just one of the many things I found, when I get a chance I will upload my build log and photo's.
