i have prophet 100's and they are a good ski. the only thing i have found wrong with them is that the tip has softened after riding them. i mean seriously softened. my friend picked up some moment ruby's at the same time as me last year (which generally had a very similar hand flex), we skied about 15 days on our skis, and his tips were the same, where as my prophets are flimzy as fuck. the tails are still pretty stiff, but the tips have deff softened. this is good for deeper snow, but obv not as good for going thru crud n shit.  on the ice, eh, they're ok. i wouldnt say awesome, but they're not too bad. stomping cliffs, well, if you can stomp cliffs then they'l handle just fine.