Well guys I've done my NRL system. Exactly the same as the S12 system, took me 5-10 mins to do. Held off on doing it for a bit since I was going to make a new system from scratch. The S12 one performed better over 1 round (a very small sample) but is much simplier and quicker to test so I gave it a go. So far it's 19-9 on all games from R4-R7. I'm about to all other rounds this season.

Definately going to try and adapt it to Super League and AFL. Still plenty of season left for me.

I know 19-9 is not a meaningful number statistically, but it is a nice start and considering the system has already gone 53-16 on another sport I'm optimistic.

The bookies seem sharper on NRL, just 1 point in the spread decides the bet more often than it does in S12.