16 The plaintiff first advanced the single index case in its substituted statement of claim of 29 September 2006. In that statement of claim the plaintiff claimed a declaration that the DHW index, alternatively the Davis Langdon index, alternatively the 4113 WA index, alternatively the Rawlinsons index, alternatively the 4113 National index should be substituted for both the materials index and the labour index referred to in Annexure G to the Project Deed. The plaintiff then sought an alternative declaration that the DHW index, alternatively Davis Langdon index, alternatively 4113 WA index, alternatively Rawlinsons index, alternatively 4113 National index, should be substituted for the materials index. On the first day of trial, 12 September 2007, the plaintiff abandoned that part of its claim that advanced the single index case. The plaintiff's single index case did not, of course, occupy any time at trial. I am not satisfied that the advancement of the single index case caused the defendant to obtain or prepare any expert evidence that it would not otherwise have obtained. The advancement of the single index case would have caused the defendant to undertake some work to prepare to meet the case but having regard to the issues in the action and the litigation as a whole I find that the additional work undertaken by the defendant is not substantial in the context of the case as a whole.