Read a thing once about restaurant kitchens where they said the trick is to batch your trips instead of running back and forth for one thing at a time. The guy writing it called it "consolidating your steps" or something, but it's the same idea as your tray. Basically every time you leave the line you should be carrying something or grabbing multiple things on the way back. He said new cooks lose the most time on that and don't even notice because it feels busy. Your boss was kind of a jerk about how he said it but he wasn't wrong. Timing yourself is smart too because you can't fix what you can't see.

Man that is scary, glad you caught it before something worse happened. Those vacuum bleeders are sneaky like that, the air sneaks in around the bleeder screw threads and it looks like it's pulling fluid fine when really it's just sucking air the whole time. I've had the same thing happen on a buddy's truck and we spent an hour chasing a soft pedal before figuring out the kit was the problem. The little rubber seal on the hose end never sits right on the caliper either, it just wobbles loose. Two person method is annoying but at least you know the fluid coming out is the real deal. Pedal going soft on the ramp is nightmare fuel, good thing you were smart enough to test it before getting on the highway.