755, 755G, 755A, 755EX, 755R are too sensitive to adjust the zero & span

You’re not the first to complain about this! There is a way to “desensitize” both the zero and span pots. It’s usually the span pot that gives you the heartburn; when you just breathe on the pot and your reading changes a 1/2 percent … that’s when you should call us!