Replying to Ideal Length - Twin Tips

I bought my first pair of twin tips this summer from a friend of mine. They are last years 1080s with 912Ti bindings. He sold them to me for $300 bucks. Not bad considering they were only used twice! The only problem with these skis is they are pretty short. I am 6'0 tall, and the skis come up to my eyes, so i am guessing they are 167s. Should I be concerned at all that they are too short? I know that they will be pretty slow, but I only plan on using them in the parks. I have some X-Scream series 187s that get me around the mountain pretty well when we get dumped on.