Nope. In a more all mountain oriented board I rarely prefer rocker between the feet. When it comes to that type of riding I tend to sit back seat a lot, just how I ride. So something with rocker between the beet gets weird on me in rough situations and I butt check too much in deeper snow. Flat between has always eliminated that feeling for me so I just prefer that or camrock.
Slayblade will do fine in pow, you'll have to site on your back foot more than the Ultra or Turbo, but the Blade will be more powerful in general just cause you always have tip to tip engagement with the board.
More groomers, rough situations: Blade, Turbo, Ultra.
More pow, nicer conditions: Ultra, Turbo, Blade.
Hard charging skilled rider (most conditions) : Raptor...