Hmm....PBMining was logged in the last days every time, a bunch of times every day.
So I think, he / they are reading everything here.
But why dont answer? Payouts are little bit smaller but coming constant.
Untill now, it is not too late to answer.....

Guys:) Wait for the next payout. If there is again 6/7 we have a problem. otherwise i think it is no problem

exactly. yes because difficult jump was negative , so can`t be lower than last one

Ummmm... I have a feeling that our next payment will be lower than the last one. Here is why:
Let's assume that a contract has 1TH, and the difficulty decreased around 6PM EST 12/2/2014.
Difficulty, Theoretical BTC/Hour, # Hours This Week So Far
40,300,030,328, 0.00052BTC, 66 Hours (Sunday - Tuesday @ 6PM)
40,007,470,271, 0.0005238BTC, 42 Hours (Tuesday @ 6PM + 24 Hours for Wednesday + 12 Hours Today)
This means that as of 12PM EST, I should have:
0.00052 * 66 + 0.0005238 * 42 = 0.03432 + 0.0219996 = 0.0563196BTC pending
When I check my account balance, I actually have: 0.04641061BTC pending
0.04641061 / 0.0563196 = 82.41% of expected pending BTC.