The curve is at an interesting point right now, with some big players also jockeying around positions at the end of the year. Lately PIMCO has been taking off their FOB stepeners in size, last week about 70,000 x 25,000 on the futures side and who knows how much on the cash side. I think their perspective on this is that risk premiums are not yet about to increase, so why be short the 30yr bond. There is possibly better value in say 20yr TIPS (with inflation as low as it is, possibly the low print we will see for some time on Thursday) than the long end at these levels. Obviously people also aren't worried about a massive unloading by the foreign central banks quite yet either. There should be massive demand at the 30yr auction beginning in February from the pension funds, so I would assume after that, and Big Ben is begninning his reign as Fed Chairman, is a good time to put on the steepener. Until then, I think any steepening in the curve is a good spot to put on a flattener (even at these levels) and ride the wave until the Fed finishes their campaign or as the economy continues with average growth but no inflation. The Fed is puzzled by the low yields in the long end and doesn't seem to mind the curve inverting at this point.