Replying to ON3P FR size question

I am going to pre-order the 2016 Filthy Rich but I am a little confused on sizing. 181cm with 10-20%rocker skis are what i normally ride, but with the really early rise and high camber should i go for the 186cm?
I ski mainly park.
Like to hit the trees and groomers somedays.
mainly riding keystone, breck, beav. CO
Big on rails. and jibs
trying to lock in some of the bigger Freeway jumps
6' 1 165lb
So just trying to see if Ill need the 186cm for more stability. and if i do, will it throw me off on rails?
Appreciate the help.