In reply to siwithington:
If you read Dane's site / or the CT Hammer sale site it does (did) tell you that you will need to make a slight modification to fit the hammer.
I had to do it on mine, it took me 5 mins with a file.
How old is your Hammer? Dane has just started making a new version (version 4?) of the CT Hammer which requires no modification to fit either the Nomic or Quark.
Let me know if you have any probs and I'll send you a pic of what I had to do.
Cheers