My buddy Matt is the fastest short order cook I ever worked with. Just a beast. He works in a bar across from UT that rings 15k on busy shifts. All burgers and tacos. He devised a system he called ‘buddy burger’. When the first order comes in he slaps an extra patty down, two orders-two extra patties go down and so on and so on. No water bath, just relentlessly putting down patties that have yet to be ordered. Works like a charm and he’s done it since ’91.