hello bill, i know you know a little bit about shoes and was wondering if you think the mizuno wave elixer would be a good race day shoe for the marathon, the place i'm working now gave me a pair to use and they seem pretty light however they don't seem quite as light as those nike racing flats you gave to me last year, the triad i think, but since it the race is pretty long maybe those nike's wouldn't be substantial enough, anyway i just thought i'd ask for your opinion ian