TheZenWriter, I think I'll take IWrite's advice that whatever works for you best is what works.
I've already written 7 spec scripts. The main issue is that I have to fix problems like poor dialouge and structural flaws.
Beyond that, I already know how the story goes, and what the beats are.
At this stage of the game, I work at one script at a time, until I finish the rewrite, send it off to a script consultant, and then move on to the next project while waiting to get my analysis back.
"All that matters is that in the end, after all your rewrites you wind up with a well-structured story with well developed characters that change and grow. If you believe you have this in the end, then whatever you are doing is working."
That's my end goal, and I think I've already achieved this on 3 of my scripts. In essence, I think my first drafts are my outlines.
My major issue was, I never had any problem with my query letters or synopses landing my reads at decent sized prodcos. Ditto for connection.
However, my SCRIPTS were of poor quality, so write now I'm more concerned about improving the quality of my screenwriting. Writing good outlines, treatments, etc is almost a different skill than writing the screenplay itself and I don't want to lose focus. That's why, unless it is absolutely necessary, I don't want to write outlines. I don't want to take energy off my working on the actual rewrites of my scripts. And that's why I wanted to find out if it is absolutely necessary to do so, because of it was, I would. The overall consensus seems to be it isn't, and of the best experts here (Iwrite) thinks that it isn't.