Take it timed from the very beginning. When the timer goes off, draw a big black line under the last question you answered. Take the rest of the section and time yourself to see how long it takes.
When you tally your score at the end, make a column for your "timed" score and a column for your "untimed" score. Also take note of how far overtime you went-- finishing in 37 minutes is much different than finishing in 45.
I always thought the timed and untimed scores were beneficial because (1) I got to practice all the questions on the test in as little time as possible, (2) I could determine my potential, and (3) the untimed scores were always higher than the timed scores and really motivated me to cut my time down.
See my thing is, I'm still at the point where I'll start a game and have no idea where to even start. I'm starting to figure out though that once I learn how to diagram those they become much easier. I guess I don't really think I'm ready to be timed on whole tests yet.
That being said, I obviously recognize the important of putting pressure on yourself to take your sweet time on questions. I think I'm going to start timing myself on Sunday, by which point I'll have finished a substantial amount of material so I'll at least have a clue how to attack most problems. Thanks for the advice all.