i'm 160 pounds, 5'8", and i got 179 hellbents that i just took in to the shop to get mounted. i told them -1 from dead center, and i ski as much pow/everything switch as much as i do forwards, and i ski very agressively. (like literally, 40 % switch, 60 % regular riding...) should i have gone dead center? i thought 1 back would be good because the rocker seems slightly larger in the tips, so there would be more ski that's NOT rockered in front of my toes for stability. thoughts, and thankyou.