well, i'd go for 162 and call it 100% freestyle board for me.
For forest and 1-2 meters of powder my NS was fine. but sometimes i want it to be longer =)
I think fast turns require some skills, may be later you'll realize, that on a softer board it's impossible to do intensive and faster turns with 240lbs on it.
If you're looking for something smaller i'd got for Heritage. But libtech with 25% off looks sweet.