You are shredding skier and one that doesn't want to be in the most narrow boot out there, so you look at the Prime 115 W -- excellent choice.  There is no terrain too insane and not a whole heck of a lot you'll say no to.  A boot that can drive a pair of skis with precision and power is what you need and that's what the Atomic Prime 115 W will do. Uncompromised performance. She rips. 

How's the fit? The Prime 115 is true to size and width. The toe box is a more pointed than most ski boots so you may feel a big more pressure on the inside of your big toe and outside of the pinky toe. Instep is generous for a 100 mm lasted ski boot. Heel pocket is precise and has great hold. Small pressure points will come out if the shell is molded to your feet.  Want the fit to be a little more plush, move to the Prime 105 W.