I have switched to the DS trainer after I gave up on Kanano, they felt almost identical minus heavy weight of Kayano. I wore DS trainer 16 for a year, then the Asics intro-ed 17. I needed secondly pair, so I gave a shot on 17...well, they are almost identical feel in most area, except the 17 felt chunky. They must have added cushion, because they feel heavier. I still get same distance and time, so that's okay, but I just didn't think the 17 was all that, and I manage to locate the very last pair of 16 in local shop I went back to the 16 and happy again (until I log enough mile to retire...then what am I going to do!?)

Also note, the 17 is UGLY. 16 was ugly with that blight red but could get by. But who designed 17!? they are blight sky blue and grey, I thought I got WOMEN's shoes! But yes, these are MEN'S!! Wow...Must be Japanese thing to wear this color combination. I hope the Asics will do better job on 18 or I will look for other brand again.