I dunno I just made the switch from invaders to chron wides and they are fucking sick, they are mounted 5cm back from center (standard cause i have the reactors) and they rip it everywhere, I'm riding switch better than I was on my invaders partly because its a slighty stiffer ski, and I really mean slightly because I can't hold a butter on the snow but I can't flex them just as far and I flexed my invaders, the only difference is the chron's flex back