here's an up to date graph for you on the price action of FNMA 6.0's
As you can see, after a slight dip this morning, there has been relatively little volatility and a good amount of buying interest in general. Spreads versus treasuries have continued to hold firm.
We'll get another more detailed post out to you with more factors to consider about possibly floating into the NFP report on Friday. Until then, enjoy the price improvements that should have hit you (or that will hit) from most lenders.