The concern I have about a joint petitioning system is that it doesn't make the distinction between the executive and the legislature. Now, more power to your elbow—and that's an English turn of phrase that I'm not sure will translate—so good for you in Canada for taking a different approach. I would have great sympathy for the approach you're taking.
Again, in the imperfect world that we must all inhabit, the proposals we have put forward are given credibility by the fact that although it is a joint system, the committee in charge of basically the whole process will be drawn from the House of Commons. I think we have the better end of the deal.