Replying to K2 reckoner 112 size.

so im 177cm (5ft10cm) and 75kg (165lbs) . prolly gonna cop 112 reckoners. i currently have a volkl revolt 95 for park and a line sfb 176 for playful allmountain. looking for a charge-y powderski but i dont want something fully directional so reckoner 112 seems like a good choice. im an intermediate skier id say. should i go for 177cm or 184? are they flexible? if they are i think 184 will be better for charging and cliffs but is it gonna be hard for me to maneuver? thanks.