Well, this predicament is what nudged me towards spending the money to take the practice AAMC test...I'd initially started studying with paper, and yeah, I got my own rythym down and everything. Of course when you're going to a different medium, you'll have to adjust, and I didn't want test day (with all the other added stress) to be my 'adjust' day. I'd *highly* suggest purchasing the tests from AAMC (even if you just use the free one), as at least that way, you'll have a much better sense of how the change to a computer medium could affect your scores.