So, my revision took only about six hours total.  That was six hours of the song "It's Been Awhile" by Staind playing on repeat.  (Odd, yes, because Seth would never listen to Staind.  But that song always gets me into his head and helps with his voice better than anything else for some reason.)

It's done now.  And I am happy

Oh, and I've also sent it off to the agent who requested it.  I guess getting that full request really was a good kick in the arse!  If only it always worked like that for me!