i have the black 05/06's and have ridden the yellow ones a bunch in everything from pow so grooms. i liked this years better in pow because they're lighter and softer on the ends so u get good float and pop in pow but with the same demensions as the previous years. the black ones are stiffer and better for charging crud / going really fast everywhere. as for grooms and park its your call i dont ride many manmade features so i prefer a stiffer ski.