GWS46:
Many thanks Peter, I'm trying to get them to both move together, i.e. at the same time but I'm obviously doing something silly. Any pointers would be much appreciated.
If you want them to move in lockstep, go back to your original code and just move the second servo every time you move the first servo.
If you want them to move independently you need to make some fundamental changes to the structure of your code.