157 To conclude, while considering the issues raised, I became concerned about an issue not raised or debated but arguably pertinent to the determination of the issue of costs. I noted above that when the offers of compromise were made, the costs of the discontinuance and of the lost opportunity claim were live issues and, if the offers of compromise had been accepted by the defendants, the results would have been no costs allowances in favour of the defendants. As to the plaintiffs, under the terms of the offer of compromise, they would have borne their own costs. The offers purported, therefore, to deal with all costs issues. In such circumstances, I suggest that a question arises as to the relevance of the matters raised by the defendants to the exercise of the cost discretion, the powers under Order 26 and the relevance of the under Rules 63.15 and 63.04. When they received the offers, the defendants were in a good position to understand the complexities of the case, the relative strengths and weaknesses and the potential outcomes. The defendants cannot, and do not, point to any difficulty in assessing the offers.[95] They chose, however, to take their chances on the offers of compromise and the cost outcomes proscribed by the Rules. It may be arguable that, unless there are special circumstances, it would be inconsistent with the objectives of r 26.08 to permit a defendant to raise such issues when they were effectively addressed by the offer. The issues not having been debated before me, however, I express no final views upon them.