I am at the point where I have to put the keel strips in but I am having a problem getting them to line up in a straight line.When Isight down the keel it seems to bow from about the middle to the stem .The keel is made of four strips could this be the problem or could it be the forms are out of line all refrence lines seem to be bang on or at worst very close. The kayaka is a guillmont. Thank for any help or ideas JD