David Glasner points out that one could consider Fed "tightening" starting as early as 2006:
... Beckworth and Ponnuru themselves overlook the fact that tightening by the Fed did not begin in the third quarter – or even the second quarter – of 2008. The tightening may have already begun in as early as the middle of 2006.
That's what I said:
The Fed both reduced the monetary base (M0 and MB) and [effectively] raised interest rates (also dependent on MB and M0) starting after 2005 relative to a log linear path of monetary policy from the early 2000s.
The Fed was effectively raising interest rates gradually from well before the onset of the financial crisis by having the base grow more slowly than NGDP.