Ski length

Hey, I'm around 172, in my late 20s and ski since around 5 years. I would say I'm an okay skier, I get down every slope, have no problems with blacks but I would say most of my friends are still much better than me. I would say I mostly do short to middle swings.

I planning to buy the Stöckli Montero AX and found a pretty good deal for around $1000 for a pair from last year that is 163. As I generally like short swings I think that, I generally don't think the length is too bad, but since I'm going to have them for a few years, I'm not totally sure if the 163 might be a bit too short in the future. The 168 on the other hand are $300 more and I'm not sure if it's worth the extra $300.

Do you think the 163 are okay in the long run or should I invest more money to get the longer ones to have more room to grow?