Thanks USA 79S. Yeah I did research both the CI9s and the DI9s. A couple of things made me go for the CI9s, firstly when I was getting fitted I really liked the feel of them and I was hitting the ball on the simulator best with the CI9s. Also I really like the look of them, I've never liked clubs with a fat sole, I much prefer clubs with a thin sole, just an aesthetic thing.
Although maybe the DI9s would have been more suitable for my level right now, I'm putting significant time in practicing and getting lessons and so far I'm moving in the right direction and I'm really happy with my purchase. That said, when I do mis-hit a shot boy does it go wrong! I tend to come from outside to in (something my coach is trying to fix) which produces a slice, so if I mis-hit then it does go more right than the Callaways I was playing with.
Thanks for your advice.