Alright one of my friends that I freeride with every day has both of these boards (38" ethos) and I've riddern both back to back. Usually comet boards do have a little bit of a weak construction but the 2015 ethos is solid. Maybe even better than the sugar. I have a manifest and it seems like it has a bit of flex and can chip/ dent easily but again. Ethos is a tank. Also I have an omen buzzkill and like how their concave is lated out plus their construction is also amazing. I personally like the ethos better for the wheel wells and flares that keep you locked in and but the sugar is still a great board with less concave. Hope this helps