Total of Back Squat, Strict Press and Dead Lift. 3 attempts per lift, there is no time limit, however once you declare your first attempt you only have 3 total attempts.
Your first declared attempt should be a weight you know you can do for a heavy set of three. That weight should be at about 85% of your Wendler 531 max (a number you should have recorded). The second attempt should be a weight you know without any doubt that you could do for a single, having just done the first attempt. Lastly, the third attempt is the weight you want to lift, based on your performance on the previous two attempts.
Your coach will lead you through a class warm-up as always, but the lift specific preparation is up to you.
After the squat, rest for a couple minutes (long enough to recover, but not long enough to get cold) and follow the same warm-up for the press. The squat 1RM attempts will provide a serious central nervous system jolt and so it should be easier to prepare for the press. Following the press maxes, the dead lift preparation should include several warm up sets. 3×50%, 60%, 70%, 1×80%, 85%, 90%…
Basic precautions that need to be followed for safety:
1) Don’t be stupid.
Don’t Total if you’re injured to the extent that
a Total will aggravate the problem. This will
cost you in at least training time, and possibly
time off of work if you’re ultra-stupid.
2) Don’t be greedy.
Learn to recognize the difference between
greed and ambition, and be merely ambitious.
3) Don’t be pig-headed.
If your first attempt tells you that you need to
lower your second, do so, without a misplaced
sense of diminished self-worth. It’s a test,
and it’s designed to measure what’s there,
not create something that’s not. That’s what
training is for!