I agree with KO24....If you have to sew by hand threw all that many layers you would find out why 1/4 inch seam was adapted...to me if you are going to start quilting you might as well bite the bullet and get use to using 1/4 seam....and once you do your gonna ask yourself why would you use 1/2 seam... :lol: My Mom done this same thing...she done several 1/2 seams and now she asks herslef why... :lol:
but try it's your quilt do what you are comfortable with.....no set rule...just suggestions :D