I'd think this would greatly vary from person to person, but if it were me, I'd do the same warm-up as you did Saturday, hit a single at 365, hit 400 or 405, just to be sure, and then go up in 15 or 20 or 25 pound increments depending on how they feel. Unless you think you're gonna do something like 500, in which case I'd make much bigger jumps.