DF, there are many more qualified people to answer these questions but I will punt.
A) always have a plan
B) try to stick to the plan 90% of the time.
I am assuming because you are from the South and by your profile pic that you aren’t effen around with some wimpy single ply gear. Not that that makes any difference, or that there is anything wrong with that…
Benching: Last few cycle of benching me and the other guys that I train with who are say, 600 to 800 lb benchers, have been going 2 weeks in a shirt, 1 week Raw. Shirted weeks go something like week 1) 2 board for easy 3, 1 board for double, 1 board for PR. week 2) warm ups then 3/2/1/ board, one set for after warm ups at about 85%, 1 board for PR, 1/2 board for PR (or touch). Raw week is actually gear oriented, heavy 2 boards, possibly against bands, 3 board, close grips, floor press etc.
Squatting: 12 weeks out start off in briefs, straight weight for 3 weeks, accommodating resistance for three weeks, suit straps down 3 weeks, reverse bands up until opener, straps up. or something like that. Once again better people out there to ask, esp on squat.
Deadlift, shit, some guys train geared all cycle, others don’t throw it on until two weeks out. Very individual. I haven’t found a DL suit I like yet(i.e. one that make me feel like superman and can get at least 50 lbs out of right away). Once I do I will let you know.