Why bother with weighing powder? Just put in what looks right.
I've had the stoney point headspace gauges 20 years, from back before Hornady bought them out. They've long since been amortized and it takes about a second to mount it on my calipers. Going by the "slight resistance when closing" method can fool you because there are other things than the shoulder that can cause the same feeling like an expanded case head or tight neck. Measuring something instead of guessing is never the wrong answer.
+1
