Apart from PFPTP ProFirst, several other suggestions have been made on the same basic premise, namely that if all the votes for a party, from every constituency, were taken and shared evenly between all its MPs, exact proportionality would be achieved.
But because not every party can field a candidate in every constituency, some proposers have suggested that in order to avoid a large number of people having to vote tactically, a separate "proxy" ballot might be essential so that you can vote for your preferred party even if it has no candidate in your constituency.
This, it is claimed, would be a far more exact form of PR than any of the systems usually promoted. It avoids the usual problems that hinder adoption of other PR systems, where a significant number of people still end up with their second - or even third - choice. With a "proxy" vote, every party that had at least one MP elected, would be proportionally represented in Parliament by means of the system of proportional voting power in the House that is an essential part of all of these proposals.
It would mean that no vote could be seen to be wasted, even in “safe” seats, and so many more people would vote. An increase of up to 10% in turnout might be anticipated.
However, the main disadvantages compared with the PFPTP ProFirst alternative are:
While PFPTP ProFirst did not originally address the issue of voters who would prefer to enter "None of the above", a much simpler "proxy" procedure within ProFirst is now proposed: