I have been wearing Brooks for a number of years due to back and knee problems, mostly glycerine. I wanted to try these because they are less expensive. Also because the current glycerin options were quite ugly to be honest, but these (blue and yellow ones) weren't. To each his own, it's subjective. The Launch shoes are noticeably stiffer than the Glycerin line, which was a good thing at first. But when I wear them I can definitely tell a difference, especially in the lower back. Not much…