I accept both those arguments. The difficulty is how to get the timing right. If the timing of the vote is left entirely in the control of the Prime Minister, frankly it would be a pretty stupid Prime Minister who could not select when he would have a much better chance of getting the desired outcome. There is no question but that the timing of the vote can affect the outcome. Whether we go down the legislative route or the convention route, we should be looking for some mechanism that gives Parliament more control over the timing and more choice about when votes are called, as was suggested. If all the choices about timing are left to the Executive, it is almost certain that the vote will take place when it is most likely that the Executive will get the result that they are looking for.