also you shouldnt be worried about going up to the upper 170cms or 180cm you 5'8'' thats about your own height. plus if your getting a ski thats symetrical the centermount will balance your skis off making them feel shorter and easier to swing
even though that is a good deal 180 is pretty big for a 5'8 person..some people might disagree but depeing on how much you ride what you ride and how good of a skier you already are..at 5'8 i think you would be better off with a 170
The volkl walls would be really good for you. they are 115-87-115. You can get thin in 185, or 177 if you wand it a little bit smaller. Its Symmetrical, but isn't super soft. They are very durable, and good for you.
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