Dave's wife Cathy has the seasons results. They were based on points for each place in each division, weighted depending on which division. So The team that won Div 1 got more points for each round than anyone, the team that one Div 2 got more points than the last few places in Div 1 but significantly less than the Div 1 winners and so on. I think the minimum points for just turning up & playing was 5. The number of points available depended on how many divisions there were, so winning Div 2 out of 3 scored much less than winning Div 2 out of 5.
Also, any rounds reffed were given an average of the season's scores i.e. of they had scored a total of 50 series points over 5 legs and reffed one, they would be given 10 points for the leg they reffed.
Sorry I can't tell you more but Rekka decided how it was going to be worked out so I don't know the exact details, just roughly what system was used.