I would have a scoring system of 4,2,1,0. Then on the Saturday a pre qualifier with Slovakia, France, Hungary, Ukraine, New Zealand, Norway and Holland. Monday race off 1 Sweden, Denmark, Latvia, Czech Rep, Germany, Slovenia plus pre qualifier 1st, Then Tuesday race off 2 Russia, GB, Australia, USA, Italy, Finland plus pre qualifier 2nd, then Friday& Saturday final.
The format could be used for a European club championships, maybe 4 teams from Poland, 4 from Britain, 3 from Sweden and 3 from Denmark to race off to meet the Polish league champs 1 year, the British league champs the next year, then the Swedish, then the Danish.