umm... your right on the line kind of, i would go bigger though. especially if you are not done growing or plane to gain wieght, im not trying to be mean and call you fat, i mean muscle wieght or overall growth wieght.
I have a pair of 174 FOILs (last years model) and i think they are a good size for me. Im 6'0" 185 and I love these skis. You can always go longer and it not be a problem. Ill still throw on my K2 C4s and they are 188 and have no probably skiing the extra foot. Id say the only thing limiting you is that its just a little more ski when riding park/pipe and the trees get a little tighter too. Id say go with ur instinct and whatever you grabbed first that should be ur ski.