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PBMining's whole schtick was that you would get 100% PPS equivalent for your hashrate, no fees or costs. Network luck should have no bearing on it.

1. Of course we are hashing, otherwise we would be paying our users out of our own pockets and that would eventually make us bankrupt.  We are here to succeed and have paid out our customers on time since our launch.
 
2. There are no mining pool fees to the customer.  We cover our own mining fees from our pool workers which the customer will never have to see.

Instead, the customer is payed based on this fixed formula, taken right from our PHP script:

$per24 = ($totalHashingPower * 25 / $difficulty) * (60 * 60 * 24 * 65535 * pow(10,6) / pow(2,48));

This formula is standard with all Bitcoin Profit Calculators.  Our users do not mine directly with our hardware -- the advantage of this is that we are capable of insuring them during any downtime or performance reductions.  PB Mining guarantees a fixed rate of hash power at 100% efficiency -- a luxury you will not find anywhere else. 

Enough time will pass to the point where the Blockchain ledger speaks for itself when you look at all our happy piggies.   

We are also the first company to give away free hash power.