Jim is correct, the shamans would be a more appropriate comparison as would a Atomic Thug and many of there powder specific traditional camber boards, IMHO the goat is not a powder specific board, the tip is only 134, this is not very wide, the 105 underfoot is much easier to ski on than you may think, in soft snow playing along edges, gs turns and even medium turns, you don't really notice them other than an obvious delay when you really try to rock on edge. quick changes in direction, like along the edges are actually quicker than many narrower skis due to the terrain and snow. THe Shaman for instance is stupid easy and fun. I am looking forward to actually trying them as a mid-fat ski as they are considered to be very good on soft snow and groomers (although i will wait to try to comment, seems like a little stretch). Remember, the Shaman has a 15m TR!
http://www.icelanticboards.com/ then go to products and Shaman.
Although rocker and skis like the shaman are easier and less fatuging, the reason why I like them (I know I would like a rocker) is the sensation, its got nothing to do with technique. I love the surfy, easy, floaty feeling. This is something that seems to be misunderstood.