Replying to Not usually used to doing this, but what size?

I'm here basically to ask what size No Times I should get, because I've never owned a ski over 155...

I had K2 Domains last year, but in the past year, I started growing. A lot, as in 7 inches in the past year or so. My skis are way too short, and almost feel unstable now. I want either 172 or 182 No Time's, but my problem is which... I don't think I am done growing, I have at least another couple inches to grow, but right now I am 5"10, and weigh in between 140-150. I ski mainly rails, but I definitely get a good fill of jumps in too, as well as when I have the chance just skiing around the mountain. So a pretty well rounded skier.

So NS, answer my question, what size?