I am a novice builder and am building an oxford shell. After stitching and checking my lines I taped and glued the inside seams. After removing the copper wire I noticed that when I sighted down the keel line when the boat was upside down the bow and stern were high and the middle was lower creating an antirocker shape. My question is if this is normal or do I need to split my seams and reshape it? I was looking at the CLCPatPics of one being built and it seemed that I could see a similar dip in their hull, but I couldn't find a picture with the angle to tell for sure.
Any input would be appreciated.