As someone who has withdrawn before, I can confirm that the only downside to it is losing the $ if you don't do it by the refund deadline. It will not show up on your record (essentially, it's as if you never even signed up).
When you say "at your target score" does that mean an average of say, the last five tests? Or simply meaning that you have hit your target score on your most recent test? Just curious for clarification. Thanks!
i remember there are even five consecutive ones. or definitely there are more than two four consecutive ones. I think there might be an algorithm plus human effort to mess around the answer choices. it is both logic and psychology being tested.