Replying to Is 171cm too big?

I am 5'4" and still growing, just yesterday i purchased the 171 ON3P jeronimo which i am super excited about.

But as i kept talking with my ski friends i became more and more worried about jumping from a 151 to a 171. and im concerned about having to start all over again in the park... (not being able to spin a lot...ect.)

the jeronimoes do have a rocker so i know that this will help while i am "just skiing" but i dont want to lose all my in air ability.

as of right now i am really undecided so any educated advice or suggestions would be super helpful... thank you