I love my hovercraft but it is also a disadvantage if things get scraped off to ice. You really miss the tail edge when trying to hold on. I really do love it though. Between my hovercraft and flagship, I am happy almost anywhere!
i'm 5'11 170 and have a 156, but could easily ride a 152 in even the deepest of pow; and actually i wish i had a 152 instead. with your weight you might even consider the twin sister or the mothership. if you get a flagship in any size it will be too stiff for your weight.