"The first is that the only way in which the appeal could succeed is on the basis of the slip rule and there are two objections to applying the slip rule. The first is that I am by no means satisfied, any more than Judge Jones was, that he would have allocated to multi-track if he had been asked. The second reason is that in the light of the history of this matter and the fact that there has been one bona fide attempt to appeal in writing and orally, and the amount of time and money spent on this case already, mean that it would be inappropriate to invoke the slip rule."