Whilst rummaging the Intarw3bz, I came across a disagreement with one of those rules. James Patrick Kelly writes about writer's workshops and notes:
...workshops are not for everyone....Nor are workshops for followers of Heinlein's Third Rule for Success in Writing: "You must refrain from rewriting except to editorial order." There's no point in workshopping non-negotiable stories....it's dishonest to decide beforehand that no matter what transpires during the critique, your story is perfectly salable and you're not changing a goddamned word.Got me thinking.
Seems to me what Heinlein's trying to say here is: "Don't revise your story to death. Get it written and get it as good as you can. Then get it out to market. Otherwise, you risk falling into the trap of taking out a perfectly good section because you think it's not needed only to put it back in again because, hey, it actually worked the first time around and what was I thinking?!"
Rule #3 works for me.