Replying to Powder Ski Sizing

Hey dude just looking for a recommendation for a size of powder ski because this will be the first powder ski that I have purchased.

So 6' 155lbs, aggresive skier, came from racing. Most of the skiing that I will be doing with this ski will be tree skiing. Not much big mountain or anything like that.

I will be getting the surface new life I am just debating on whether I should get 194 or 184. There is a lot of rocker so I know they will ski shorter but I think if I am skiing mostly trees than it may not be the best idea. Also I have been riding 180 park skis for the last three seasons.

Thanks a lot NS!