I would like to preface this: The seller has agreed to exchange this if i want, but i want to be reasonable. I received a knife from one of the recommended stores for the holidays, and noticed that the blade had a slight bow to the side. This is my introduction into japanese style western knives, a 240mm guyto, and would like it to be a good experience. Is it worth exchanging this blade for a straighter blade? the second picture is comparing the tip to a cd.