We've been playing several seasons so there is a general consensus on what we can and can't do. Its all honor code. Certain money plays aren't allowed. Other than that, we don't allow motioning of running backs or allow motioning of the farthest edge receiver.. which limits abuse of option and counter into space. It actually makes the games a lot more challenging. We usually play 6-user-team OD with middle of conference teams. Right now we are playing PAC-12 with a substitution of BYU in for Colorado. We make the sliders pretty difficult with a dramatic cpu advantage and play on Heisman. To make it even more difficult, we jack up elite conference teams to make them very very hard to beat. USC, Ducks, Stanford, are all 99s on both sides of the ball. We then increase LBS to all 99s on nearly every other team in the conference to make it more difficult to run and pass. The road games are always tough to win even against the average teams in the conference. The elite teams are nearly impossible to beat. Plus, you have to win games against the several other user teams. So all in all, its pretty tough but very fun.