Some background about me first. After 4 years of skiing on rentals I have finally decided that it's time for me to get my own ski equipment. I consider myself and advanced-intermediate to advanced skier. I ski on the east coast and can ski the black diamond groomed runs where I ski (primarily NY) with no problem. As you might have guessed, I primarily spend my skiing days carving down groomers, but this year I'm looking to branch out and explore new terrain types. I especially want to get into tree skiing. I also enjoy the technical aspects of skiing more then straight up speed. I'm quite a skinny fellow at 5'6" and 130lbs.
Now for the actual question.
I have a chance to get a good price on a set of used Kastle MX88's with bindings. Needless to say I got exited when I found a set of Kastle skis that would fit into my low budget for skis and bindings (up to $700). However, they are the 158cm length. The rentals I have skied for the past 4 years were all around the 160cm length so I'm used to a shorter ski. My question is, are these skis going to be too short for me in the long run? I guess as a skier who is looking to improve his technique I'm worried that I might "outgrow" these skis rather quickly. What do you guys think?