So QR killed me on the first time I took the DAT. The rest of my scores were 18 and 19s but in QR I got a 14 and now I'm retaking. I definitely would not underestimate QR. Its not the difficulty of the math its the time constraint that gets you. Know how to do multiplication, division, exponents, logs, trig function identities, special triangles, geometry, and conversions really fast in your head. Do so many problems it becomes second nature to you. Know exactly how to "attack" a problem and what kind of problem you are doing and realize how the "spin" it. I remember being so upset on my first DAT because I forgot to Celsius to Fahrenheit and Fahrenheit to Celsius equation *hint hint wink wink* and I didn't have time to derive it. Also know exactly how you will set up your sheet. This is the last section on the DAT and you might be drained by that point. For each section know exactly how to set up your sheet. I suggest at the top you have the first row for question numbers, second row for A, third for B, fourth for C, fifth for D and sixth for E so you can eliminate answers and when you mark a question, you already know what answers you eliminated. I also suggest you write formulas you had problems with in one of the corners. I take my second attempt at the DAT on Friday. I've been through Destroyer Math twice. Wish I had time to do it a third time. Best of luck to all of you!