Forum Editing!

When do you guys go back and edit? Is it when you have finished the first draft or do you continually read and edit what has gone before before you move onto the next part of the story?
I have heard different writers edit at different points. So i wondered what you guys do and what you think is better.

For my published work, I hire a professional editor. It's the only way to go. They give me a first edit. I make corrections/rewrites as needed, then they do a final read. However, I tweak and tweak until I push the 'send' button to the publisher. ::biggrin::

I'm currently writing a Christain/Fiction/Fantasy trilogy. The rough draft of the first book is finished and I'm currently doing the editing for it. I waited until I was done writing the first book to start editing it but I've decided to try a new method when I start with book 2. I intend to write a chapter a day.
The next day, when I begin a new chapter, I will first edit the chapter I wrote the day before. I think, or I hope, doing it that way will save time later. I will, however, do some more tweaking to the book once it's finished. I don't really know that any one method is better than the next. It all depends on what fits the writer best.

nothing's 'better'... whatever works for [i]you [/i]is 'best'...

i've done both at different times, with different works, in various mediums... and other ways in between...
sometimes one way works best and sometimes another...