I envy you. Perhaps I should consider a method similar to yours. I find that when I start writing (the Muse beats me to death) I just continue until I am wasted. I've written as much as 14K at one sitting then sit around wondering what next. If the story takes life, I have to continue until it wanes. Of course, most days it seems I write zilch... that's when the Muse should really be hitting me!