This is one of those obligatory alerts where price action in context doesn't justify an alert, but MBS prices have touched their lows of the day.  In addition tsy's have broken out of their trend of improvement on the day with the 10yr backing up 3.35.  Will there be reprices?  Tough to say, considering the nice, flat resistance going back to yesterday at 11am.  That coincides with some internal support at just over 3.35 in tsys.  So personally, I wouldn't be rushing to lock anything that wasn't locked already.  However, given the lock bias of the hedge ratio, that might constitute a different swath of your pipeline...

If you can risk it, roll with it and wait to see if 3.35 tsy's break or 101-21 MBS breaks.  Some lenders will reprice for the worse, but many will not (not unless we move lower that is... and we'll let you know if that happens).