Time management is much more crucial during the AFOQT vs ASTB. I found the AFOQT to be harder only b/c there were more verbal sections and I suck at grammer. I believe that if you dont do well on the AFOQT, you have to wait 6 months to retake vs 30 days for the ASTB. If you plan on taking the AFOQT, try to find and take as many practice tests as possible. It will help w/ time management.