That brings up my methodology...well, if it can be called that.
I call it my 7 layer dip process. Right now, what I am writing is layer 1. The gist of the plot with major dialog and action. Little is written of detail, ambiance etc. Layer 2 is reworking the major plot points, direction and dialog. Layer 3 is fleshing out minor characters and back-story where needed. Layers 4 and 5 are repeats to finalize major details and catch big errors with plot etc. Layer 6 is where I insert the ambiance...the sounds, the feelings, the textures and other tiny detail to make my story pop out at the reader. Layer 7 is the all out assault with editing where I whip out the delete button en masse and truly hone my story down to what I want and need it to be.
Of course, all these layers are repeated because of one bit is chopped up in editing, that may affect a minor detail a chapter later and then that will need to be addressed. So yes, my first drafts are VERY rough drafts!
How do you write and reach your goal?