You ' ll be fine , talk with guidance councilor at western if you aren ' t completely sure if you ' ll make it <| sep |> I am digging Chorol . Chooooroooooool . <| sep |> I don ' t know about this contrived example , but in the real world MMP results in party seat percentages very close to party voter percentages likely in part because there are hundreds of seats up for grabs . Excellent . So the Green Party with 10 % support would get between about 9 % and 11 % of the seats . Very proportional . One might even say fully proportional . Excellent . Whereas , under STV only , they would get 0 % of the seats . Horrible . Also wrong . Under STV , using the same ridings as the MMP example , the green party with 10 % support would get between about 9 % and 11 % of the seats . There is a huge difference between the proportionality of the two systems in practice , which is why I call one fully proportional , and the other not . This is wrong . There is no increase of proportionality of MMP over STV , which work basically the same in terms of the proportionality part STV is a pure proportional system , not a mixed one , neither in theory nor in practice . The biggest difference is only a masochist would run a 5 seat MMP , whether that is something that is completely reasonable under STV for small electorates . But that ' s why you would only need a very thin layer of MMP to make it as proportional as the example in the first paragraph of this commentThis is even wronger ! yay grammar . Thin layers of MMP is completely irrelevant to making STV proportional . The only thing relevant is riding size . EDIT Adding MMP to STV to make it proportional is like adding fish to sashimi . I mean , you can , but it doesn ' t help make it any more fishy . It can help if you are making something larger , though although I don ' t know what kind of dish you are going to make with sashimi fish . on the order of 16 % as a theoretical maximum , but likely far less than that in practice . 8 %? 10 %? I ask you again , where are you getting these numbers ? You seem to be under the mistaken belief that STV cannot have riding sizes in excess of half a dozen winning candidates .