I absolutely agree about the Zweitmandat system. For those unfamiliar:
> The Zweitmandat (English: second mandate) is a feature in the variation of mixed-member proportional representation (MMP) used to elect the Landtag of Baden-Württemberg. Unlike most variations of MMP, such as the German federal electoral system, Baden-Württemberg's system does not use party lists. Instead, proportional seats are filled by losing candidates who won the highest proportion of votes.
> The Zweitmandat (English: second mandate) is a feature in the variation of mixed-member proportional representation (MMP) used to elect the Landtag of Baden-Württemberg. Unlike most variations of MMP, such as the German federal electoral system, Baden-Württemberg's system does not use party lists. Instead, proportional seats are filled by losing candidates who won the highest proportion of votes.
https://en.wikipedia.org/wiki/Zweitmandat