Parliamentary Voting System and Constituencies Bill

Does the Minister recognise that there is concern on all sides of the House about the excessive rigidity of the Government's proposals? If the amendment is not acceptable—I understand what the noble and learned Lord says—will he at least consider bringing back to the House an amendment which says something to the effect that the Boundary Commission should have discretion outside the 5 per cent principle either way if it considers that there are exceptional circumstances for a particular constituency?