Good question. I mean if you get much higher, obviously it would help, but whether it's worth it depends I would say 1. On the effort you would have to put in 2. On what your alternative options are. For example, if you are planning on reapplying next year and would be able to make use of a higher score, then it's probably worth it, if not, then maybe your time could be better spent on other improvements (can you get promoted within the next month?
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