What would PWK think about all of this? Designing circuits to closer tolerances is always better. After being in the Air Force working with Mil-Spec parts in a Pmel lab, sometimes you have to use a 5% resistor instead of a 1%. Remember the resistor code, Bad boys , etc. don't want to offend anyone these days. lol Same with old Simpson 260 meters, some had mirrored faces for greater accuracy and some would not. How close do you need to see 5v or 12v. Of course digital gives a more accurate presentation but I just love the old d'arsenal movements. To each their own.