I do not like wasting others' time. Writing is no different. I am blessed with both a wonderful writers' group and an awesome new critique partner. They are always generous with praise and provide helpful insight on ways to make it better. Yet, I am in the initial stages of my WIP and, though I know where I want things to go in the big picture, I am struggling writing the page-to-page. So, I find myself cringing each time I submit something to them. "Rough" draft is very much an exaggeration. I know without hesitation that my WIP will take several drafts before the story is complete and I even consider querying.
I'm curious what your rule-of-thumb is when submitting to critique partners or writers' groups? Do you believe it is a waste of their time and talents to submit as you write? That a writer should wait until that first rough draft is complete before subjecting others to it? Or do you believe it is simply part of the process?