Cause the Sim I am currently using is fairly simple, although it is the same one Thomas used. However it has a better output than I have seen from other football simulators so you get a proper feeling for what is happening in the game. I am trying to get one that has detail on both sides but currently I vbelieve this is the best option as you get far more detail from this than other sims I tested. Unfortunately I do not know enough about computers to write a sim but i will be actively seeking to improve the sim we use.