Replying to 6'4" 200lbs. 177's too short?

I am in the market for some new skis next season but need to do my research. I'm 6'4" 200lbs. very very aggresive skier. I ski everything but im looking for a park specific ski in this instance. i currently ride 177 public enemies with Rossignol scratch 120 bindings. the stiffness of the public enemy allows me to ride that short of a ski but i was wondering if getting a softer flex ski would make me wash out that much more and if it would be a bad idea. any knowledge on this topic NS? thanks for the feedback