Worked fine in the UK General Election on 15th May.
At least it did if you were a Conservative. Almost every party was doing it, so it didn’t work so well for Labour. It got a lot of votes for the new boys on the block, an anti-European Union party, but one seat. It lost a heap of votes and seats for the Lib-Dems who were in coalition and said “only we can stop the left going left and the right going right and keep the government in the middle ground”. Unfortunately the UK population had realised after five years of a coalition that a coalition is inevitably a compromise, and a compromise is where everybody gets what nobody wants.
Scotland having failed to get its independence returned all but three of its members of the UK parliament from the Independence Party.