Only played one round with it yesterday, and it could be the first date/honeymoon syndrome but my first impression is that this shaft kicks major butt!
I noticed it has a different trajectory than the blue version, It doesnt balloon as much, It gets up quicker and keeps raising then levels out where the blue goes up a bit slower and keeps shootin up. Another way to explain it is in steel terms. The NS950 goes up and up and is fairly easy to balloon but the NS1150 flattens out at its peak yet still gets up quick.
Im really liking this shaft, its giving me a few more yards carry and it is very easy to hit.