I concur with the last two posts, but would add that the scenario you describe should no longer be described as a rejected take off: it is now an emergency descent from a climb, a separate thing entirely. Understanding this is key. As has been pointed out, it is not a manouevre that is trained for, is familiar, or has any graphs associated with. It's not wrong per se, just don't consider it a rejected take off, and be prepared for surprises.