Another question, is the bottom supposed to have a "W" shape to it?

If I use the dimensions given in the book for the Wee Lassie 2 it
produces a "w" curve on the bottom as the #4 "mold" is taller than the
#3 "mold". The #4 and #2 "molds" are the same height but the #3 is
1/16th inch shorter making a dip (or rise if the boat is right side
up) on both sides of the center which is higher. Is this a misprint?
I can correct it now as I have not yet put the keel strip on. but
after the keel strip is on the bottom curve will be set.