The experience may vary widely, but when I took the test the questions I saw on the actual exam closely mirrored what I saw in OG--especially the last questions in each section of OG.

Good luck!

There is certainly a difference to solving problems on screen, in a set of 37 or 41 questions, for which you know you can't go back and you have to answer the current question to get the next one.

When you do problems from OG, you're trying individual problems, but you don't have the same time and logistical pressures as when doing problems on a test - so, yes, you do have to adjust for that. That's why it is important to do things such as:

- Don't write in the OG books themselves, don't write on the problems, underline things, etc. Work on separate paper, which is what you'll have to do on test day.
- The first time you try an OG problem, time yourself and HOLD yourself to that time. Eg, if it's a math problem, get to an answer within 2 minutes - make yourself pick something even if you don't really know the answer. Again, that's what you'll have to do on test day. (Of course, then spend all the time you want going back and analyzing the problem and redoing it.)
- Take full-length practice tests that mimic the real test approx. every 2-3 weeks. (Every 3 weeks earlier in your prep and every 2 weeks as you get closer to d-day.)