I have 1.0 minimum difficulty, and 0.3 reinvestment. It doesn't show the actual hash rate, just the advertised rate. But I'm happy with the revenue so far. Next to "Your Balance" at the top of the miner page, click the BTC amount to see the payout history.
Oh, also:
Miners on the dashboard are only used if you attach your own hardware to the pool
So then all you need to do is set the reinvestment for each contract.