The problem is a) that a government losing a confidence vote can't now be forced to dissolve b) that introducing new concepts like supermajorities into parliamentary procedure is the thin end of a very dangerous wedge, particularly when said supermajority is fiddled to be 'just a bit more than what we don't have' c) that the larger party in the coalition holds a convenient 47% of the seats, and that even if such a guarantee is necessary, the law should not be written for the political expediency of the current government - that sort of thing should be covered by an agreement between the parties, not the law d) that it's not worth the paper it's written on, because pretty soon the Tories could find 50 Labour MPs willing to take a shot at overturning the last election's result in the blink of an eye. 66% would make much more sense, if accompanied by the 28-day safeguard there is in Scotland.

So as well as being against everything this country stands for, it's unnecessary, time-consuming, funds-consuming legislation. You know, of the sort that the Conservatives and LibDems promised to abolish.