@Feaster
My personal advice about the DART and a thing you did not mention.
Pay attention to the numbers that you will hear and have to sum.
I was taking the test and had only 1 conflict on the second test of the DART. But obviously did not write all of the sums correctly, because there was a guy with 4 conflicts next to me and passed the test. - which is why I attribute my failure to the incorrect input of the numbers.
Good luck!