I have the s4's. they are a really good ski in the park and they feel great on hardpack as well. I ride them in powder and crud for my team and they work great until i get to the steeps where they are a little squirelly. They didn't have great control on the steeps, but that mught be because of my center mounting. They are really a fun ski great pop, easy butters and they are pretty durable. Not to mention that they won in the pipe at x games haha
hope that helped good luck finding skis and I know that wasn't really specific so if you want more detailed aspects of the skis just ask me.