Well I am going to be taking the ASTB on june 18 th. I've been studying every chance I get but the mechanical comprehension and the math are kicking my but. Just took a pract test for the mechanical comrehension and got 16 out of 30. Know that sucks but plan to look over the ones I got wrong so I understand it better. If anyone could please post anything that they think might help I would really appreciate it.