Do subtests that don't affect your AFQT on the ASVAB matter?

I'm studying for taking the ASVAB about 3 weeks from now. I'm planning on going into the air force in one of the mechanical engineering fields, can anyone advise me on whether I should take time out to memorize a lot of stuff for the sub-tests unrelated to the AFQT or is there such little benefit to it,... show more I'm studying for taking the ASVAB about 3 weeks from now. I'm planning on going into the air force in one of the mechanical engineering fields, can anyone advise me on whether I should take time out to memorize a lot of stuff for the sub-tests unrelated to the AFQT or is there such little benefit to it, that it's better to just focus on the AFQT related sub-tests.
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