Hey ,I've got the 14 x29 2015 glide ...the shape is different to the 2017 .
the 2015 has a more kicked up nose .narrower tail ..it's really good for DWing ,if you do that .the 2017 has a flatter rocker line .i would say its faster than the 2015 /16.but if your happy with the price of the 2015 ,like I was ,its still a great board .i have the 2015 javelin as well ,but I needed something bullet proof for my friends .the construction is as tuff as it get s..it's very stable .and surfs better than my jav.with the kicked up nose .