I've been chasing this my whole brewing life. Here's where I currently stand:
12°P, 80/20 Weyermann Pils/Bohemian Dark
Water, nothing excessive, lactic acid as needed
20 IBU in beer, so ~27 in wort, Mittelfrüh/Tettnang blend, divided into two equal charges, FWH (for 75% of BU) and 10 minutes (25% BU)
Short, low-intensity boil
2124/830
The DO as low as you can go -- do your best hot side, be absolutely impeccable cold side.
(This beer is a moving target for me, my White Whale. It will change again.)