Personally, I'm not particularly interested in changing the score system too much
I initially created the spreadsheet to help automate the graphs for all teams at a moments notice.
The Prof asked about adding that functionality as it was something that could be done quite easily on my spreadsheet. We will probably run several models and then realise that the Prof had it right all along.
I have no idea what point systems would particularly improve his model, but am happy to run it for anyone that has an opinion on the matter.
Also as Prof has said we can look at other parts of the table (ie relegation areas) which would require changing the par scores and groups