With 137Th you should have made ~ 17.66 BTC this week. You paid out  8.56 BTC leaving 9.1 BTC for management fees, power, etc.

At this rate, after a few more difficulty increases, there won't be anything left for distributions.

You should take the 300-400BTC you are getting back from BFL and either pay it out as distributions or buy 500-700 Antminer S3+'s.