I think some of the tippyness could be solved by making the bottom very wide, like a normal canoe. Say 22 inches or so, rather than the 8 inches you see here. However, I am starting to wind down on my desire to build boats - I don't know if I will do another. The upper strakes can be altered to retain the shape of the canoe so it still looks Viking-ish, but this design just doesn't cut it.