On DE days for lower, we would after doing 9 sets of doubles work up to a heavy single box squat, same set up with gear as you did all the other sets. If you do speed deads following speed squats, take a little rest and then work up to a PR. Maybe once every three or four weeks for either or do one one week, take the next week off from working up, then the other or do one one week, the other the next, take a week off then take a weight or a "max." IMO this corresponds to what you will be feeling like at an actual meet, if you ain't dragging a little ass going into your deadlifts, you haven't tried hard enough.
On ME day, one thing I found out about working up is do high reps on minimal weights to warm up obviously but start trying to make bigger jumps. Pick your PR weight or the weight you want to hit then take big jumps, as you would in a meet in order to get more used to it. One rule of thumb is 10% or your max or PR.
For DE bench, I would work up to a heavy single double or triple on close grip, just an idea.