Replying to EDollo sizing dilemma

I’m 15 years, 5 foot 4 (162cm), 110 lbs, I am still growing and cannot decide which size I should get for my EDollos 164 or 172. I don’t want to out grow my ski in one season but also want to be able to be comfortable and flex my skis. I am an advanced skier but just starting out on park and freestyle. My main interest is learning butters and just having a good playful time on side hits all over the mountain. Which size should I get? Will a 164 still be good if I grow 2-3 inches?